Hyper-Realistic K-pop Selfie on Rooftop

```json
{
  "subject": {
    "identity": "K-pop girl group main vocalist, stage name: LUNA",
    "age": 21,
    "ethnicity": "Korean",
    "hair": {
      "style": "High ponytail, bubblegum pink with 3 cm ash-rose gradient at roots",
      "texture": "Glass-like shine with 2 mm flyaways illuminated by neon",
      "accessory": "Heart-shaped rhinestone hair tie, 5 mm gems glinting under flash"
    },
    "makeup": {
      "skin": "Glossy cushion foundation, 0.1 mm pores visible on cheeks",
      "eyes": "Rose gold eyeshadow up to brow bone, 4 mm silver glitter below tear ducts, 12 mm winged false lashes at outer corners",
      "liner": "Sharp 45° eyeliner with 0.5 mm gaps filled white",
      "lips": "Cherry gradient inside, blurring outward to petal effect, 1 mm thick gloss at center",
      "blush": "Cool pink blush swept high on cheekbones, reflecting phone flash"
    },
    "pose": {
      "head": "Tilted 15° to the right, chin down to emphasize V-face",
      "eyes": "Looking up at phone camera with 2 mm highlight on aegyo-sal",
      "mouth": "Slightly parted heart-shaped pout, 3 mm gap between lips",
      "hand": {
        "device": "iPhone 15 Pro with glitter lilac case, three rhinestones missing from lens ring",
        "grip": "Three fingers behind phone, pinky extended, almond-shaped nude nails with micro-shimmer",
        "angle": "Camera held 30 cm above eyes, arm extended"
      }
    },
    "attire": {
      "top": "Cropped lavender hoodie with frayed hem, 1 cm sweat bead at collar",
      "neck": "Layered silver necklaces, shortest choker 1 cm above collarbone",
      "earrings": "Asymmetric star-moon earrings, 8 mm, swaying with head tilt"
    },
    "lighting": {
      "key": "Built-in phone flash, 6500 K color temperature, slight overexposure on nose tip",
      "fill": "LED ring light clipped to phone, 5600 K color temperature, circular catchlight in eyes",
      "background_bokeh": "City night skyline hexagonal bokeh, underexposed by 2 stops"
    }
  },
  "background": {
    "location": "Seoul 23rd-floor rooftop café, time 21:17",
    "depth": "Out-of-focus neon signs, purple 'カフェ' and pink 'OPEN', 3 cm blur effect",
    "sky": "Clear indigo sky with 2% sunset orange remaining at horizon",
    "props": "Frosted glass railing and string lights 5 cm in foreground, one bulb burnt out"
  },
  "camera": {
    "mode": "Portrait mode, 3× zoom, f/1.78, 1/120 s, ISO 250",
    "filter": "Built-in 'Bright' filter +10, skin smoothing off",
    "artifacts": "Slight purple fringing on earring edges—preserve this effect"
  },
  "output": "Hyperrealistic, 8K resolution, preserve flash glare on cheeks, maintain 9:16 vertical phone ratio, no watermarks"
}
```