# GPT Image Hub prompt

## Retrato Nocturno Urbano con Flash
- URL: https://www.gptimagehub.com/es/library/night-city-flash-portrait
- Generator URL: https://www.gptimagehub.com/es/generate?promptId=oss-ym-mm-12593
- Markdown URL: https://www.gptimagehub.com/api/agent/markdown?path=%2Fes%2Flibrary%2Fnight-city-flash-portrait
- Category: Retrato y fotografía
- Model: nanobananapro
- Aspect ratio: 4:5
- Style: photorealistic
- Tags: fotografía con flash, retrato nocturno, luces de la ciudad, estilo de vida, alto contraste, reloj de lujo, composición centrada
- Updated: 2026-10-26T16:50:08.098Z
- Created: 2026-10-26T16:50:08.098Z

Genera un retrato nocturno de alto contraste iluminado por flash directo sobre luces urbanas. Cambia los colores hex, el vestuario o el fondo para personalizarlo.

### Full prompt
```text
{
  "metadata": {
    "image_type": "photograph",
    "primary_purpose": "portrait/lifestyle"
  },
  "composition": {
    "rule_applied": "center composition",
    "aspect_ratio": "4:5",
    "layout": "single subject foreground with expansive deep background",
    "focal_points": [
      "Subject's brightly lit face and crisp white shirt",
      "Clasped hands displaying luxury watch",
      "Glowing band of city lights in the background"
    ],
    "visual_hierarchy": "Viewer eye starts at the smiling face, travels down the unbuttoned white shirt to clasped hands and watch, then moves outward to glowing city lights and mountain silhouette",
    "balance": "symmetric subject placement contrasted by slightly asymmetric background landscape"
  },
  "color_profile": {
    "dominant_colors": [
      {"color": "Deep Black/Navy", "hex": "#0D1117", "percentage": "55%", "role": "background night sky and suit jacket"},
      {"color": "Crisp White", "hex": "#FFFFFF", "percentage": "15%", "role": "primary subject shirt"},
      {"color": "Warm Skin Tone", "hex": "#C68767", "percentage": "15%", "role": "primary subject face and hands"},
      {"color": "Golden Yellow", "hex": "#F4C430", "percentage": "10%", "role": "accent city lights"}
    ],
    "color_palette": "complementary warm golden lights against cool dark blue/black shadows",
    "temperature": "warm foreground against cool dark background",
    "saturation": "moderate vivid skin tones and lights, deep desaturated shadows",
    "contrast": "high contrast"
  },
  "lighting": {
    "type": "mixed direct artificial flash on subject with ambient practical lights in background",
    "source_count": "single dominant front flash foreground, pinpoint ambient lights background",
    "direction": "front, slightly elevated",
    "quality": "hard light creating crisp shadows under chin, collar, and hands",
    "intensity": "bright on subject, low-key overall background",
    "contrast_ratio": "high contrast dramatic foreground isolation",
    "shadows": {
      "type": "harsh defined edges",
      "density": "deep black",
      "placement": "under chin, behind shirt collar, under hands, beneath lapels"
    },
    "highlights": {
      "treatment": "specular",
      "placement": "on nose tip, forehead, hair texture, and watch face"
    }
  },
  "technical_specs": {
    "medium": "digital photography",
    "style": "realistic lifestyle portrait",
    "texture": "glossy hair and watch contrasted with smooth fabric and skin",
    "sharpness": "tack sharp on subject",
    "grain": "subtle digital noise in deep background sky",
    "depth_of_field": "medium with crisp subject and distant visible city scape",
    "perspective": "eye-level"
  }
}
```