Nano Banana Pro 复古闪光组自拍提示

{
  "photo_type": "Indoor party selfie (vintage flash aesthetic, raw realism)",

  "subjects": [
    {
      "id": "person_left",
      "face": {
        "description": "Use reference image 1, keep identity 100% unchanged"
      },
      "pose": "Leaning slightly inward, shoulder angled forward",
      "expression": "Pout lips, slightly squinted eyes, relaxed playful look"
    },
    {
      "id": "person_center",
      "face": {
        "description": "Use reference image 2, keep identity 100% unchanged"
      },
      "pose": "Centered, leaning slightly forward toward camera",
      "expression": "Soft pout lips, relaxed eyes, subtle confidence"
    },
    {
      "id": "person_right",
      "face": {
        "description": "Use reference image 3, keep identity 100% unchanged"
      },
      "pose": "Leaning inward, head slightly tilted toward center",
      "expression": "Pout lips, soft playful expression"
    }
  ],

  "interaction": {
    "body_contact": "tight shoulder-to-shoulder grouping",
    "energy": "casual, playful, close friends"
  },

  "pose_rules": {
    "important": [
      "faces very close together",
      "slight overlap of shoulders",
      "tight crop composition",
      "all subjects angled toward camera"
    ]
  },

  "expression_rules": {
    "important": [
      "all subjects doing pout/kiss face",
      "slight variation in intensity",
      "natural not exaggerated"
    ]
  },

  "lighting": {
    "type": "direct harsh flash",

    "setup": [
      "camera flash from front",
      "dark indoor environment",
      "no soft lighting"
    ],

    "effects": [
      "bright face highlights",
      "flat lighting on skin",
      "strong shadow falloff behind",
      "flash shine on nose and cheeks"
    ],

    "color_temperature": "warm slightly orange tint"
  },

  "camera": {
    "type": "smartphone front camera",

    "lens": "24mm wide",

    "settings": {
      "aperture": "f/2.2",
      "iso": "ISO 700",
      "shutter_speed": "1/60s"
    },

    "lens_behavior": [
      "slight wide distortion",
      "faces closer appear slightly larger",
      "edge softness"
    ],

    "sensor_behavior": [
      "visible grain",
      "color noise",
      "low dynamic range",
      "flash overexposure in highlights"
    ]
  },

  "color_grading": {
    "style": "vintage digital",

    "rules": [
      "warm orange tone",
      "slightly faded blacks",
      "film-like softness",
      "no modern HDR look"
    ]
  },

  "skin_realism": {
    "details": [
      "visible pores",
      "flash shine",
      "minor imperfections",
      "natural texture"
    ]
  },

  "hair": {
    "details": [
      "natural loose styling",
      "slight frizz",
      "individual strands visible",
      "shine from flash"
    ]
  },

  "clothing": {
    "style": "casual night outfits",

    "details": [
      "black tops",
      "denim jeans",
      "s"
    ]
  }