Z 世代/千禧年复古风闪光肖像，背景是贴满海报的卧室

"prompt_description": {
    "subject": {
      "appearance": "Young woman with fair skin and dark brown hair styled in a high, messy bun with loose strands framing the face. Soft, fresh makeup with rosy cheeks and mauve lips.",
      "outfit": "Oversized, cream-colored ribbed knit sweater with a wide, folded collar.",
      "environment": "Bedroom setting with a white wall densely decorated with a collage of magazine cutouts, posters, photos, and stickers (indie/retro aesthetic)."
    },
    "technical_style": "Flash photography, candid snapshot, Gen Z/Y2K aesthetic, casual and cozy vibe."
  },
  "pose_specs": {
    "body_position": "Upper body portrait (bust shot). Shoulders slightly hunched/raised in a cozy posture.",
    "head": "Tilted slightly to the side (viewer's left), creating a soft, approachable angle.",
    "expression": "Gentle, closed-mouth smile with kind eyes gazing directly at the camera."
  },
  "camera_settings": {
    "viewpoint": "Eye-level.",
    "focal_length": "28mm to 35mm (Smartphone wide lens).",
    "aperture": "f/4.0 to f/5.6 (Everything in relatively sharp focus from subject to wall).",
    "shutter_speed": "1/60s (Synced with flash).",
    "iso": "400",
    "composition": "Centered subject with a busy, textured background."
  },
  "lighting_setup": {
    "type": "Direct On-Camera Flash.",
    "qualities": "Hard, frontal lighting.",
    "shadows": " distinct, hard drop shadow visible on the poster-covered wall directly behind the subject's head and shoulders, characteristic of point-and-shoot or smartphone flash photography.",
    "color_temperature": "Cool flash white balance (approx 5500K) contrasting with the colorful background."
  }