自然阳光特写肖像提示 Nano Banana 2

{
  "photo_type": "Natural sunlight close-up portrait (raw realistic capture)",

  "subject": {
    "face": {
      "description": "Use uploaded reference image, keep identity exact, no reshaping or smoothing"
    },

    "pose_description": "Lying or slightly reclined, head tilted, one hand placed under chin",

    "expression": "neutral soft expression, relaxed lips, natural gaze to side"
  },

  "lighting": {
    "type": "direct natural sunlight",

    "setup": [
      "sunlight entering from window side",
      "partial face illumination",
      "hard light edge with soft falloff"
    ],

    "effects": [
      "bright highlight on cheek and nose",
      "strong natural shadow on opposite side",
      "uneven exposure across face",
      "real sunlight contrast"
    ],

    "color_temperature": "natural daylight 5500K"
  },

  "skin_realism": {
    "details": [
      "visible pores",
      "tiny freckles or marks",
      "natural oil shine",
      "uneven skin tone",
      "no smoothing or blur"
    ]
  },

  "hair": {
    "details": [
      "natural strands visible",
      "slight frizz",
      "not perfectly arranged",
      "light catching individual hairs"
    ]
  },

  "clothing": {
    "details": [
      "white lace top",
      "fine fabric texture visible",
      "small wrinkles and shadows"
    ]
  },

  "accessories": {
    "details": [
      "thin necklace",
      "small pendant",
      "subtle reflections"
    ]
  },

  "camera": {
    "type": "smartphone rear camera",

    "lens": "26mm",

    "settings": {
      "aperture": "f/1.8",
      "iso": "ISO 50-150",
      "shutter_speed": "1/800s"
    },

    "focus": "sharp on eyes, slight falloff",

    "sensor_behavior": [
      "slight grain in shadows",
      "highlight clipping in bright areas",
      "minor noise"
    ]
  },

  "lens_effects": {
    "details": [
      "slight overexposure on highlights",
      "natural contrast",
      "no artificial blur",
      "real depth falloff"
    ]
  },

  "background": {
    "details": [
      "white fabric or bedding",
      "soft folds",
      "light shadows",
      "not perfectly smooth"
    ]
  },

  "color_grading": {
    "style": "raw natural",

    "rules": [
      "no heavy editing",
      "slight warm tint",
      "natural skin tones",
      "real camera color"
    ]
  },

  "imperfections": [
    "lighting unevenness",
    "skin texture",
    "minor grain",
      "highlight burn"
    ],

  "composition": {
    "camera_angle": "close-up slight top angle",
    "framing": "tight face crop",
    "depth": "face sharp, edges softer"
  },

  "resolution_and_aspect_ratio": "4K, 4:5",

  "vibe": "natural beauty, sunlight, effortless realism",

  "strict_rules": {
    "must_have": [
      "real sunlight contrast",
      "skin texture visible",
      "no smoothing",
      "reference face unchanged"
    ],

    "avoid": [
      "studio "
    ]
  }