# GPT Image Hub prompt

## Chân Dung Màu Nước Dưới Ánh Trăng
- URL: https://www.gptimagehub.com/vi/library/moonlit-watercolor-portrait-from-photo
- Generator URL: https://www.gptimagehub.com/vi/generate?promptId=oss-ym-mm-5397
- Markdown URL: https://www.gptimagehub.com/api/agent/markdown?path=%2Fvi%2Flibrary%2Fmoonlit-watercolor-portrait-from-photo
- Category: Áp phích và minh họa
- Model: nanobanana
- Aspect ratio: 2:3
- Style: painterly
- Tags: màu-nước, chân-dung, ánh-trăng, img2img, minh-họa, bầu-trời-đêm
- Updated: 2026-10-27T13:08:58.098Z
- Created: 2026-10-27T13:08:58.098Z

Chuyển ảnh chân dung thành tranh màu nước đêm trăng thơ mộng mà vẫn giữ nguyên đường nét khuôn mặt. Điều chỉnh trang phục, ánh trăng hoặc sắc độ màu theo ý muốn.

### Full prompt
```text
{
  "prompt": "Nighttime moonlit watercolor illustration of [the woman from the reference photo], strictly preserving 100% of her facial features, identity, proportions, age, skin tone, and expression. Soft realistic facial rendering with hair [following the reference photo, gently flowing]. Elegant [traditional or contemporary attire inspired by the reference photo] painted in cool-toned watercolor hues. Setting: tranquil night scene featuring a luminous glowing moon, drifting soft clouds, faint stars, and deep indigo and blue watercolor washes. Lighting: soft celestial moonlight accenting the face and shoulders against the dark backdrop. Technique: visible delicate pencil sketch contours, layered wet-on-wet watercolor washes, subtle paper texture, dreamy poetic atmosphere.",
  "negative_prompt": "blurry, low quality, deformed, extra limbs, bad anatomy, watermark, text overlay, anime, cartoon, photorealistic, overexposed, underexposed, altered face, changed identity, harsh lighting, flat colors, plastic digital 3d look",
  "parameters": {
    "steps": 50,
    "cfg_scale": 7.0,
    "sampler": "Euler a or DPM++ 2M Karras",
    "strength": 0.52,
    "noise": 0.28,
    "width": 832,
    "height": 1216,
    "aspect_ratio": "2:3"
  },
  "usage_instructions": "Upload the reference photo in img2img or reference mode. Keep denoising strength around 0.5–0.55 to ensure exact facial likeness while rendering the moonlit watercolor style."
}
```