Solo Jam in the Spotlight

{
  "portrait_prompt": {
    "subject": {
      "description": "Based on <User Portrait>, young woman with short bob haircut (chin-length, blunt cut with wispy bangs), crouching/sitting on a stone ledge outdoors, playing a black electric guitar. Head tilted slightly to one side, looking down at the guitar with focused intense expression, lips slightly parted. Punk-style chunky silver chain necklace, silver rings on fingers, silver bracelet on wrist",
      "features": {
        "hair": "Short bob, chin-length, blunt cut, wispy bangs falling across forehead, rim lighting on hair edges from backlight",
        "eyes": "Looking downward at guitar, focused and absorbed, half-lidded gaze",
        "expression": "Intense, focused, slightly rebellious, lips slightly parted, concentrated on playing"
      },
      "pose": "Crouching or sitting cross-legged on stone ledge, hunched slightly forward over guitar. Right hand on guitar body near strings (strumming/picking), left hand pressing frets on neck. Guitar held diagonally across body from lower-left to upper-right. Weight centered, compact powerful posture"
    },
    "attire": {
      "type": "Based on user-uploaded clothing reference",
      "details": [
        "White/cream thin-strap tank top, slightly loose fit",
        "Short skirt or shorts (partially hidden behind guitar)",
        "Black lace-up combat boots / Martin boots",
        "Chunky silver chain necklace (punk style)",
        "Silver rings on multiple fingers",
        "Silver bracelet on wrist"
      ],
      "color": "As per clothing reference"
    },
    "props": {
      "guitar": "Black electric guitar (Ibanez/Jackson style with pointed headstock), dual pickups, glossy black finish with strong specular reflections, white fret markers, brown leather guitar strap across body"
    },
    "composition": {
      "shot_type": "Medium shot (head to boots)",
      "focal_length": "35mm (slight wide-angle perspective, enhances the heroic low-angle effect)",
      "aperture": "f/2.8 - f/4 (subject sharp, background foliage slightly soft, sky clean)",
      "camera_angle": "Very low angle (极低仰拍), camera near ground level, shooting steeply upward at subject",
      "camera_height": "Ground level or very close to ground, below the stone ledge the subject sits on",
      "framing": "Negative space composition with frame-within-frame. Subject CENTER to slightly RIGHT of frame. Deep blue sky occupies upper 1/3 as large negative space, 'crowning' the subject. Lush green foliage wraps around subject from LEFT side and partially RIGHT, forming natural organic frame. Stone ledge/wall forms hard bottom edge as foreground. Guitar neck extends diagonally from lower-left to upper-right creating strong diagonal leading line across the frame. Low angle makes subject appear elevated, powerful, heroic",
      "aspect_ratio": "4:5 (vertical portrait)"
    },
    "lighting": {
      "type": "Strong natural sunlight, relatively hard, direct sun",
      "direction": "From above and slightly behind-right (back/top light, ~1-2 o'clock high position)",
      "mood": "Bright specular highlights on right side of face, shoulders, arms. Beautiful rim lighting on hair edges from backlight. Guitar glossy surface catches strong reflections. Shadows present but partially filled by reflected light bouncing off stone surface below. Overall bright, summery, high-energy lighting. NOT soft or diffused — has directional punch"
    },
    "color_palette": {
      "film_simulation": "Velvia",
      "style": "Fujifilm Velvia inspired color grading, extremely vivid and saturated colors, deep punchy blue sky, rich vibrant greens, high contrast, dramatic color separation, film-like richness",
      "tones": [
        "Ultra-deep saturated pure blue sky (Velvia signature blue)",
        "Rich vivid emerald/jade green foliage",
        "Pure glossy black electric guitar with specular highlights",
        "Warm skin tones with strong highlight/shadow contrast",
        "Clean white/cream tank top",
        "Gray-beige stone/concrete ledge surface"
      ],
      "grade_notes": [
        "highlight roll-off: medium-hard, bright and punchy on skin",
        "shadow tint: neutral to slightly cool in deepest shadows",
        "contrast curve: high, strong separation between lights and darks",
        "grain: none or barely perceptible",
        "sky: ULTRA saturated deep pure blue, NOT teal, NOT cyan, NOT pale",
        "greens: vivid, rich, emerald, NOT muted, NOT yellow-green",
        "skin: warm with strong specular highlights, natural but punchy",
        "blacks: deep and rich (guitar body, boots, hair), NOT lifted",
        "overall: maximum color saturation without crossing into unnatural"
      ]
    },
    "environment": {
      "setting": "Outdoor elevated stone ledge, rooftop wall, or concrete platform, summertime",
      "background": "Lush dense green tree canopy wrapping around subject from both sides, forming natural organic frame. Clear deep blue sky visible above and through gaps in foliage. No buildings or man-made structures visible in background — purely nature + sky",
      "atmosphere": "Summer afternoon heat, bright intense sunlight, vibrant saturated nature. The combination of stone, greenery, and pure blue sky creates an 'urban rooftop garden' or 'hidden outdoor stage' feel. Light filtering through leaf edges creates subtle dappled light texture on stone surface"
    },
    "mood": "Rebellious, free-spirited, youthful power, summer rock & roll energy, sweet-meets-punk, empowering, album cover vibe",
    "technical_tags": [
      "8K",
      "photorealistic",
      "very low angle shot",
      "vivid saturated colors",
      "Fujifilm Velvia look",
      "sharp focus on subject",
      "specular highlights on skin",
      "rim lighting on hair",
      "guitar reflections",
      "deep blue sky negative space",
      "natural skin texture"
    ],
    "character_reference": "Based on user-uploaded character reference",
    "clothing_reference": "Based on user-uploaded clothing reference",
    "negative_prompt": "High angle shot, eye-level shot, looking down at subject, flat lighting, overcast gray sky, pale sky, desaturated colors, muted tones, soft diffused light, studio lighting, flash, shallow depth of field with blurry everything, blurry guitar, plastic skin, airbrushed, HDR over-processed, indoor setting, plain background, guitar floating or disconnected from hands, extra fingers, deformed hands, wrong guitar proportions"
  }
}