8K Night Portrait with Face Preservation

A complex JSON prompt for the Google Gemini Nano Banana Pro model to generate an 8K hyper-realistic night portrait of a young man on a city balcony. Crucially, it includes detailed face preservation instructions, requiring the generated image to exactly match a reference face's features, hairstyle, and skin tone, while setting a festive, cinematic mood with warm golden lighting and bokeh.

提示词

{
  "image_prompt": {
    "type": "night_portrait",
    "quality": "8K hyper-realistic, ultra-detailed, cinematic lighting",
    "style": "modern festive outdoor portrait with warm golden accent lights, slight bokeh glow and soft contrast",
    
    "face_preservation": {
      "use_reference_face": true,
      "accuracy": "match exactly",
      "preserve_features": [
        "hairstyle and volume",
        "jawline shape",
        "eyebrow thickness",
        "smile curve",
        "skin tone and texture"
      ]
    },

    "subject": {
      "gender": "male",
      "description": "young man posing confidently on a balcony decorated with warm lights",
      "pose": "leaning on railing with one hand in pocket, relaxed stance, natural smile",
      "outfit": {
        "top": "grey t-shirt with open black denim jacket",
        "bottom": "dark slim-fit jeans",
        "accessories": ["gold wristwatch", "bracelet"],
        "shoes": "not visible due to framing"
      }
    },

    "environment": {
      "location": "city balcony at night",
      "details": [
        "vertical warm fairy lights hanging behind",
        "soft shadows on railing",
        "slightly blurred city buildings",
        "dark blue night sky with warm highlights"
      ],
      "lighting": "warm golden lights illuminating subject's face and jacket edges"
    },

    "camera": {
      "angle": "eye-level medium shot",
      "lens": "50mm portrait lens effect",
      "focus": "sharp on face and torso, background bokeh"
    },

    "mood": "confident, festive, cinematic",
    "signature": "VIVEK HY"
  }
}