Nano Banana 提示词作品

{ "photo_type": "Night party portrait (direct flash iPhone capture, dark indoor background)",

"subjects": { "count": 3,

"faces": {
  "description": "Use 3 uploaded reference images, keep identity exact, no smoothing, no reshaping, no facial edits, preserve exact facial structure, skin tone, eyes, lips"
},

"pose_description": "three friends standing close together, arms around each other, facing camera directly, slight body angle variations",

"expressions": [
  "left: confident serious look with slightly parted lips",
  "center: neutral soft expression, minimal emotion",
  "right: playful smile with one eye slightly closed"
],

"body_language": [
  "close group pose",
  "arms around waist",
  "relaxed posture",
  "natural asymmetry"
]

},

"clothing": { "details": [ "sleek fitted dresses", "dark tones with satin and lace textures", "subtle shine from flash", "natural folds and fabric tension" ] },

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

"setup": [
  "strong front-facing flash",
  "dark background absorbing light",
  "sharp subject illumination"
],

"effects": [
  "bright highlights on skin",
  "hard shadows behind subjects",
  "slight overexposure on forehead and shoulders",
  "high contrast look"
],

"color_temperature": "neutral 4500K"

},

"phone_capture": { "details": [ "flash enabled smartphone capture", "slight harsh lighting effect", "tight framing", "real handheld feel" ] },

"camera": { "type": "smartphone camera with flash",

"lens": "26mm wide",

"settings": {
  "aperture": "f/1.8",
  "iso": "ISO 400-800",
  "shutter_speed": "1/60s"
},

"focus": "sharp focus on subjects",

"sensor_behavior": [
  "visible grain in darker areas",
  "high contrast edges",
  "slight noise in shadows"
]

},

"skin_realism": { "details": [ "visible pores under flash", "natural shine from light reflection", "no smoothing", "real skin texture" ] },

"hair": { "details": [ "defined strands from flash", "natural volume", "slight frizz visible", "not overly styled" ] },

"background": { "setting": "dark curtain or backdrop",

"details": [
  "almost black background",
  "minimal visible detail",
  "strong subject separation",
  "slight shadow outlines"
]

},

"color_grading": { "style": "raw flash photo",

"rules": [
  "no cinematic grading",
  "high contrast",
  "natural tones",
  "no heavy filters"
]

},

"imperfections": [ "harsh lighting", "overexposed highlights", "grain in shadows", "hard shadows" ],

"composition": { "camera_angle": "eye-level direct shot", "framing": "mid-body to upper body framing", "depth": "subjects sharp, background flat and dark" },

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

"vibe": "night out, party moment, raw flash aesthetic, unfiltered energy",

"strict_rules": { "must_have": [ "reference faces unchanged", "direct flash look", "dark background", "real skin texture", "high contrast lighting" ],

"avoid": [
  "soft studio lighting",
  "over editing",
  "plastic skin",
  "cinematic color grading",
  "perfect symmetry"
]

},

"final_director_notes": "Make it feel like a real spontaneous party photo taken with flash. Keep harsh lighting and imperfections for authenticity." }