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ComfyUI 프롬프트 엔지니어링: 평범한 단어가 환상적인 예술로 변하는 순간

"이게 정말 AI가 만든 거야?"

어제 저녁 8시, 카페에서 작업하던 중 옆 테이블에서 들린 말이다.
한 학생이 노트북 화면을 보며 감탄사를 연발하고 있었다.
화면엔 마치 르네상스 시대 거장의 작품 같은 환상적인 여신 이미지가 떠있었다.

"어떻게 만들었어?" 옆에 친구가 궁금해서 물어보니, ComfyUI와 몇 줄의 텍스트만으로 만들었다는 답이 돌아왔다. 이제 많은 사람들이 '프롬프트 엔지니어링의 진짜 힘을 알아가고 있구나'라는 생각이 들었다.

얼마 전만 해도 간단하고 단조로운 프롬프트로 평범한 이미지만 만들어내며 실망하고 있었다.
하지만 지금은?
RTX 5070Ti 16GB로 매일 새로운 작품을 만들어내며, 마치 디지털 세계의 연금술사가 된 기분이다.

오늘은 내가 지난 1개월간 시행착오를 거쳐 터득한 ComfyUI 프롬프트 엔지니어링의 모든 것을 공유해보려 한다. 기초 개념부터 2025년 최신 트렌드까지, 여러분도 평범한 단어를 환상적인 예술로 바꾸는 마법을 배울 수 있을 것이다.

첫 번째 실패: "예쁜 여자" 만들기의 한계

내 ComfyUI 여정은 참담한 실패로 시작됐다.

프롬프트: "beautiful woman, fantasy"
결과: 평범한 얼굴, 어색한 구도, 어디서 본 듯한 느낌

"이게 뭐야..." 수백 번의 Generate 버튼을 눌러도 비슷비슷한 결과만 나왔다.
문제는 프롬프트가 너무 추상적이고 구체적이지 않았다는 것이었다.
물론 초기 이미지 생성 AI모델은 생성 결과물이 별로 안좋았기 때문에 큰 기대를 하지 않았었다.

그때 깨달은 첫 번째 교훈: AI는 마음을 읽는 게 아니라 언어를 해석한다.

ComfyUI 프롬프트의 기본 구조 이해하기

1. 주제(Subject) - 무엇을 그릴 것인가

가장 중요한 부분이다. 단순히 "woman"이 아닌, 구체적인 특징을 명시해야 한다.

❌ 나쁜 예:

woman, girl

✅ 좋은 예:

ethereal elven maiden with silver hair, piercing blue eyes, delicate facial features

2. 스타일(Style) - 어떤 느낌으로

2025년 최신 트렌드를 반영한 스타일 키워드들:

• Pop Surrealism: pop surrealism, neon palette, dreamlike
• Studio Ghibli: studio ghibli style, soft colors, magical atmosphere
• Hyper-realistic Fantasy: hyperrealistic, intricate details, 8k resolution
• Retro-futurism: retro-futuristic, vintage sci-fi, art deco

3. 구도와 조명(Composition & Lighting)

이 부분을 놓치면 아무리 좋은 주제라도 밋밋해진다.

cinematic lighting, golden hour, dramatic shadows, rule of thirds composition

4. 품질 강화 키워드

마지막에 추가하는 품질 향상 키워드들:

masterpiece, best quality, highly detailed, professional photography, sharp focus

중급자를 위한 고급 테크닉

가중치(Weight) 활용하기

ComfyUI에서는 괄호를 사용해 특정 키워드의 중요도를 조절할 수 있다.

(ethereal goddess:1.3), ((glowing skin:1.5)), (fantasy background:0.8)

• (키워드:1.3) = 130% 강조
• ((키워드)) = 121% 강조 (1.1^2)
• (키워드:0.8) = 80% 약화

네거티브 프롬프트의 중요성

좋은 이미지를 만드는 것만큼 나쁜 요소를 제거하는 것도 중요하다.

판타지 캐릭터용 네거티브 프롬프트:

bad anatomy, extra limbs, deformed hands, blurry, low quality, watermark, text, multiple heads, asymmetrical eyes, distorted face

풍경용 네거티브 프롬프트:

unrealistic lighting, floating objects, distorted perspective, oversaturated colors, pixelated, noise

실전! qwen image → Flux1 Krea 워크플로우용 마스터 프롬프트 5선

내가 qwen image로 초안 생성 → Flux1 Krea로 자연스럽게 리파인하는 워크플로우에서 만족스러운 결과를 얻은 5개의 프롬프트를 공개한다. 각 프롬프트는 qwen image의 강력한 이해력과 Flux1 Krea의 자연스러운 보정 능력을 최대한 활용하도록 설계되었다.

1. 환상적인 달빛 여신 (Pop Surrealism + Ethereal Fantasy)

qwen image 생성용 프롬프트:

A ethereal lunar goddess with luminescent silver hair cascading down her shoulders like liquid moonlight, her piercing violet eyes holding the mysteries of ancient cosmos, delicate porcelain skin adorned with subtle bioluminescent veins that pulse with celestial energy. She wears an intricate gown woven from threads of starlight and shadow, the fabric seeming to shift between dimensions as it flows around her statuesque form. An ornate crescent moon crown rests upon her brow, adorned with floating crystalline fragments that orbit slowly around her head like miniature moons. She stands gracefully in a surreal dreamscape where the laws of physics bend to her will, the ground beneath her feet rippling with waves of cosmic energy. The background features a mesmerizing blend of swirling galaxies, floating geometric shapes in neon purple and electric blue, and abstract forms that defy earthly logic. Shot in a medium-close composition, the camera positioned slightly below to emphasize her divine nature, the lighting consists of multiple ethereal sources - soft moonbeams from above casting silver highlights on her hair and skin, while purple and blue ambient light creates depth and mystery. The overall atmosphere is one of otherworldly beauty and divine power, inspired by pop surrealism artists like Mark Ryden and Audrey Kawasaki, with a color palette dominated by deep purples, electric blues, and luminescent silvers. The scene is rendered with hyperrealistic detail in the figure while maintaining dreamlike abstraction in the background, creating a perfect balance between the tangible and the impossible.

2. 마법의 숲 요정 (Studio Ghibli + Biophilic Harmony)

qwen image 생성용 프롬프트:

An enchanted forest fairy with delicate translucent wings that shimmer with rainbow iridescence, each wing membrane displaying intricate patterns reminiscent of stained glass windows. Her gentle emerald eyes sparkle with ancient wisdom accumulated over centuries of forest guardianship, while her auburn hair is adorned with a living crown of seasonal blooms - cherry blossoms, summer roses, autumn leaves, and winter berries that magically cycle through the seasons. She wears garments that appear to be woven from spider silk and morning dew, the fabric so fine it seems to merge with the surrounding air, decorated with embroidered vines and tiny glowing beetles. The fairy sits gracefully upon a massive mushroom throne, its spotted cap providing a natural seat while bioluminescent fungi create a warm, inviting glow throughout the mystical grove. Tiny woodland creatures - rabbits with flower crowns, luminescent butterflies, and wise old owls - gather at her feet in peaceful reverence. The background showcases a Studio Ghibli-inspired forest where ancient oak trees stretch their gnarled branches toward a canopy filter of golden sunlight, their leaves creating dancing shadows on the moss-covered forest floor. Magical particles float through the air like fireflies, while flowering vines spiral around tree trunks and delicate ferns carpet the ground. The lighting mimics the warm, diffused quality of Hayao Miyazaki's films, with golden hour sunlight streaming through leaves to create a soft, watercolor-like atmosphere. The composition uses a medium shot to capture both the fairy's delicate beauty and the rich detail of her forest kingdom, with the camera positioned at eye level to create intimacy between viewer and subject.

3. 사이버펑크 발키리 전사 (Retro-futurism + Anime Fusion)

qwen image 생성용 프롬프트:

A cyberpunk valkyrie warrior with electric blue hair that seems to conduct energy, individual strands glowing with neon underglow that pulses in rhythm with her heartbeat. Her cybernetic left eye displays streams of targeting data and tactical information in holographic amber text, while her natural right eye burns with fierce determination. She wears form-fitting armor that masterfully blends medieval aesthetics with advanced nanotechnology - polished chrome plates etched with ancient Norse runes that glow with electric energy, flexible joints that reveal underlying fiber-optic musculature, and a flowing cape made from smart fabric that shifts between metallic silver and deep crimson. In her right hand, she grips an energy sword that crackles with plasma discharge, its blade composed of pure electromagnetic force contained within a crystalline matrix. She stands defiantly atop the edge of a neon-lit skyscraper in a retro-futuristic cityscape, the urban sprawl below featuring art deco architectural elements fused with holographic advertisements and floating traffic streams. The scene is bathed in the characteristic pink and cyan color scheme of vintage sci-fi aesthetics, with volumetric lighting from countless neon signs creating dramatic shadows and highlights across her armor. Shot using a dynamic low-angle composition to emphasize her commanding presence against the night sky, the lighting setup combines the harsh neon glow of the city with softer rim lighting that outlines her silhouette. The overall mood captures the rebellious spirit of 1980s cyberpunk while maintaining the heroic nobility of classic valkyrie mythology, rendered in an anime art style that emphasizes both realistic proportions and stylized dramatic intensity.

4. 용을 다루는 마법사 (Victorian Elegance + Dragon Fantasy)

qwen image 생성용 프롬프트:

A distinguished dragon tamer with silver-streaked hair swept back in an elegant style befitting his noble bearing, his weathered hands telling stories of decades spent in communion with ancient wyrms, each finger adorned with rings of power that glimmer with contained magical energy. His piercing steel-gray eyes hold the confidence of one who has looked into dragon fire and emerged unburned, while his patrician features bear the subtle marks of magical practice - a faint luminescence beneath the skin, barely visible arcane tattoos that pulse with his heartbeat. He wears an impeccably tailored Victorian-era coat of deep burgundy velvet, its surface embroidered with intricate golden thread depicting the genealogy of dragons, brass buttons each engraved with a different draconic sigil, and a high collar lined with scales gifted by his ancient partners. Standing beside him in perfect harmony is a majestic ancient dragon whose scales shimmer like a treasure hoard - deep emerald greens that shift to golden bronze where the light catches them, each scale a perfect geometric marvel that reflects the library's warm illumination. The setting is the grand library of an old-money mansion, its towering shelves filled with leather-bound grimoires and magical treatises, mahogany reading desks polished to a mirror shine, and golden candelabras casting dancing shadows across oil paintings of previous dragon-taming ancestors. The lighting evokes the classical painting techniques of John Singer Sargent, with a warm key light from tall windows creating dramatic chiaroscuro effects across the scene, while strategically placed candles add depth and intimacy. Shot in a three-quarter composition that captures both the human and dragon as equal partners, the camera positioned at a respectful distance to encompass the grandeur of both subjects and their aristocratic environment.

5. 별빛 수호자 (Cosmic Fantasy + Anime Elegance)

qwen image 생성용 프롬프트:

A celestial guardian maiden whose midnight blue hair contains actual constellations, each strand seeming to hold captured starlight that forms recognizable star patterns - Orion's Belt across her left temple, the Big Dipper cascading down her shoulder, Cassiopeia woven into her elaborate braids. Her large, expressive eyes literally reflect entire galaxies, with spiral nebulae swirling in their depths and distant supernovas creating tiny points of brilliant light within her irises. She wears ethereal robes that appear to be cut from the fabric of space itself, the garment's surface displaying the slow dance of distant planets, meteor showers, and aurora-like energy waves that shift and flow with her every movement. In her delicate hands, she holds an ornate staff topped with a miniature star that pulses with the rhythm of cosmic creation, its surface crackling with solar flares while tiny planets orbit around its circumference. She floats gracefully in the void of deep space, surrounded by swirling nebulae painted in brilliant purples, magentas, and electric blues, with distant galaxies creating a backdrop of infinite depth. Around her, celestial bodies respond to her will - asteroids arrange themselves in protective formations, comets alter their courses to honor her passage, and aurora-like energy streams spiral outward from her position. The composition uses a medium shot to showcase both her delicate anime-inspired features and the cosmic grandeur of her domain, with the camera positioned slightly below to emphasize her divine nature. The lighting comes from multiple stellar sources - the warm golden glow of nearby stars, the cool blue radiance of distant galaxies, and the pulsing energy of her staff creating dramatic highlights and shadows. The overall atmosphere combines the wonder of space exploration with the intimate beauty of anime character design, rendered in a style that brings together scientific accuracy in the cosmic elements with stylized elegance in the character portrayal.

qwen image → Flux1 Krea 워크플로우 마스터 팁

1. "2단계 생성" 전략의 핵심

1단계 (qwen image): 복잡하고 상세한 프롬프트로 컨셉과 구조 확립

2단계 (Flux1 Krea): 자연스러운 디테일과 사실성 보완

이 방식을 사용하면서 깨달은 건, qwen image는 창의적 해석력이 뛰어나고, Flux1 Krea는 자연스러운 완성도에 강하다는 것이다.

2. 체계적 프롬프트 구조화

디테일하고 복잡한 이미지 생성의 성공적인 프롬프트의 공식:

[주인공 상세 묘사] + [의상/소품 디테일] + [배경 환경] + [구도/카메라] + [조명 설정] + [분위기/스타일] + [기술적 품질]

각 섹션을 2-3문장으로 상세하게 기술하는 것이 핵심이다.

3. qwen image 특화 팁

• 감정과 동작을 구체적으로: "joyful expression" 보다 "unbridled joy, eyes flashing with exhilaration"
• 질감과 재질 명시: "hair flowing" 보다 "hair flowing behind her like a banner"
• 공간감 표현: "standing in forest" 보다 "standing in mystical grove where ancient oak trees stretch their gnarled branches"

4. Flux1 Krea 리파인 전략

qwen image에서 생성된 이미지를 Flux1 Krea로 넘길 때는:

별도의 프롬프트 없이 KSampler의 노이즈 제거량을 0.30으로 해서 qwen image로 생성된 이미지를 좀 더 자연스러운 이미지로 변화시켜준다.

흔히 하는 실수들과 해결법

실수 1: 키워드 과도한 나열

❌ 나쁜 예:

beautiful, pretty, gorgeous, stunning, amazing, perfect, incredible woman

✅ 개선 후:

(ethereal beauty with delicate features:1.3)

실수 2: 스타일 혼재

다양한 스타일을 섞으면 오히려 애매한 결과가 나온다.

❌ 혼란스러운 예:

anime, realistic, cartoon, oil painting, digital art

✅ 일관된 스타일:

anime art style, cel shading, vibrant colors

실수 3: 네거티브 프롬프트 무시

네거티브 프롬프트는 선택이 아니라 필수다. 특히 손과 얼굴 부분의 오류를 막는 데 핵심적이다.

마무리: 여러분의 차례입니다

한달 전 "pretty girl, fantasy"라는 단조로운 프롬프트로 시작한 내 여정이 이제 여기까지 왔다.
매일 새로운 작품을 만들어내는 재미에 푹 빠져있고, 때로는 내가 만든 이미지를 보고 스스로 놀라기도 한다.

가장 중요한 건 계속해서 실험하는 것이다.
위에서 공개한 5개의 프롬프트는 시작점일 뿐이다.
여러분만의 스타일을 찾기 위해 계속해서 변형하고, 새로운 키워드를 시도해보자.

ComfyUI와 Flux1, Qwen Image, Wan2.2 같은 도구들이 계속 발전하고 있는 지금, 프롬프트 엔지니어링을 마스터하는 것은 디지털 아트의 미래를 여는 열쇠와 같다.

여러분도 오늘 밤, 평범한 단어들로 환상적인 세계를 만들어보는 건 어떨까?

처음엔 실패하더라도 괜찮다. 나도 그랬으니까. 중요한 건 포기하지 않고 계속 시도하는 것이다. 언젠가 여러분도 "이게 정말 내가 만든 거야?"라고 감탄하는 순간이 올 것이다.