When the Fish Watch Back

{
  "portrait_prompt": {
    "subject": {
      "description": "Based on <User Portrait>, young woman sitting on a ledge directly in front of a massive aquarium tank. Head tilted completely upward toward the ceiling, chin raised, neck exposed. Right hand raised to forehead/above eyes as if shielding from or receiving the light from above. Left hand resting on the ledge beside her, fingers lightly touching the edge. Face mostly hidden — only jawline, neck, and underside of chin visible (hidden-face portrait). Ethereal, reverent posture, like a figure in a Renaissance painting receiving divine light",
      "features": {
        "hair": "Medium-length hair, falling back due to tilted head, backlit with glowing rim light on edges, some strands catching individual light rays",
        "eyes": "NOT visible — head tilted up and hand covering forehead/eyes area",
        "expression": "Face hidden but posture conveys: awe, surrender, meditation, receiving. Lips slightly parted, serene"
      },
      "pose": "Sitting on ledge/bench, body facing camera, head tilted fully back looking up at ceiling. Right arm raised with hand on forehead (shielding/feeling gesture). Left arm resting on surface beside body, fingers delicately touching edge. Dress spreading out on the ledge in front. Triangular composition: shoulders as apex, dress hem spreading as base"
    },
    "attire": {
      "type": "Based on user-uploaded clothing reference",
      "details": [
        "White long dress/gown with high ruffled collar (frill neckline)",
        "Puff sleeves / balloon sleeves, voluminous",
        "Lightweight sheer fabric — light transmits THROUGH the dress, creating subsurface glow",
        "Dress hem spreads out on the ledge toward camera, flowing and voluminous",
        "Fabric appears to GLOW from within due to strong backlight penetrating the material"
      ],
      "color": "Pure white, but appears warm white/golden in highlight areas and cool blue-white in shadow areas due to mixed lighting"
    },
    "composition": {
      "shot_type": "Medium shot (head to knee/dress hem)",
      "focal_length": "50-85mm (slight background compression, fish appear dense and close)",
      "aperture": "f/2.0 - f/2.8 (subject sharp, background fish softly blurred but recognizable)",
      "camera_angle": "Slightly low angle, camera at chest height looking slightly up at subject",
      "camera_height": "Chest-level, slightly below subject's eye line",
      "framing": "Centered symmetry. Subject perfectly centered in frame. Giant blue aquarium fills ENTIRE background as luminous blue panel — NO edges of the tank visible, just pure blue light gradient. Fish swarm AROUND the subject in a halo/ring pattern — like particles of light or angels. Subject's white dress forms a stable TRIANGLE shape: narrow at shoulders, widening dramatically at hem spreading toward camera. Dress hem fills the bottom foreground. The composition resembles a religious icon painting: central figure, blue halo backdrop, radiating light",
      "aspect_ratio": "4:5 (vertical portrait)"
    },
    "lighting": {
      "type": "Strong backlight from aquarium tank — the aquarium IS the light source, functioning as a massive blue softbox behind the subject",
      "direction": "Directly behind subject (180° backlight), with secondary warm fill from below/front reflecting off surfaces",
      "mood": "Five-layer lighting structure: (1) Blue backlight panel from aquarium — deep blue gradient, brightest at center-top, (2) Light TRANSMITTING through white sheer dress fabric — subsurface scattering making dress glow from within, (3) Strong rim/edge light on hair, shoulders, arms — bright outline separating subject from background, (4) HALATION / light bloom on brightest areas — soft dreamy glow bleeding outward from highlights, warm golden tint in bloom, (5) Warm golden fill light on dress hem and front surfaces — contrasting with cool blue backlight. Overall: the subject is NOT a dark silhouette — the translucent dress catches and redistributes the backlight, softly illuminating the body from within. Face area is relatively darker but still has enough reflected light for skin detail on jawline and neck"
    },
    "color_palette": {
      "film_simulation": "Nostalgic Negative",
      "style": "Fujifilm Nostalgic Negative inspired color grading with enhanced halation. Golden warm highlight bloom, soft dreamy glow, blue shadows, ethereal romantic quality. Highlight areas bleed warm gold. Shadow areas remain deep blue from aquarium. The NN halation effect is CRITICAL to the dreamy look",
      "tones": [
        "Deep blue aquarium water (background, upper areas)",
        "Light blue / cyan in brighter water areas (center background)",
        "Pure white dress with warm golden glow in lit areas",
        "Cool blue-white dress in shadow areas",
        "Warm gold / amber halation bloom around brightest highlights",
        "Silver-white fish reflecting light like scattered stars",
        "Pale cool skin on neck/jawline/hands",
        "Warm golden light on dress hem and foreground"
      ],
      "grade_notes": [
        "highlight roll-off: VERY soft, heavy halation/bloom, highlights bleed warm gold outward",
        "shadow tint: deep blue, aquarium-colored",
        "contrast curve: medium — enough to separate subject from background but not harsh",
        "grain: subtle or none",
        "halation: STRONG — this is the key dreamy effect, brightest areas glow and bleed warm",
        "white dress: NOT flat white — shows blue tint in shadows and warm gold in highlights, translucent quality",
        "skin: cool pale but luminous, lit by reflected blue light and scattered dress glow",
        "fish: silver-white, slightly glowing, like light particles floating",
        "blue gradient: deepest at top corners, lightest at center where main light source is"
      ]
    },
    "environment": {
      "setting": "Large public aquarium, sitting directly in front of a massive floor-to-ceiling aquarium tank window",
      "background": "Giant aquarium tank filling the ENTIRE background — no walls, no frame edges visible, just pure blue luminous water. Hundreds of small silver fish (sardines/anchovies) swimming in swirling schools throughout the water. Fish are denser around the edges and sparser in the bright center, creating a natural vignette of fish. Water surface visible near top with rippling light caustics. Aquarium lighting from above creates volumetric light rays through the water. The tank functions as a giant blue stained-glass window behind the subject",
      "atmosphere": "Underwater cathedral feeling. Blue light fills the space like filtered light through stained glass. Fish swarm like angels or light particles. The aquarium glass creates a boundary between the real world (subject) and the underwater world (fish), adding a surreal dreamy layer. Water caustics (rippling light patterns) project onto the subject's white dress, creating moving light textures"
    },
    "mood": "Dreamy, ethereal, sacred, surreal, meditative, transcendent, awe, divine light, underwater cathedral, Renaissance painting brought to life",
    "technical_tags": [
      "photorealistic",
      "strong halation / light bloom",
      "subsurface scattering on white fabric",
      "rim lighting",
      "backlit portrait",
      "dreamy soft glow",
      "blue and gold color contrast",
      "hidden face portrait",
      "centered symmetry composition",
      "aquarium backlighting",
      "volumetric light through water",
      "translucent fabric"
    ],
    "character_reference": "Based on user-uploaded character reference",
    "clothing_reference": "Based on user-uploaded clothing reference",
    "negative_prompt": "Dark silhouette with no detail, pure black shadow on subject, harsh direct lighting, flash, flat front lighting, no backlight, opaque thick fabric (must be translucent/sheer), face fully visible (face should be hidden by head tilt and hand), small aquarium, visible tank edges/frame, empty water with no fish, desaturated gray, no halation, sharp clinical look, HDR over-processed, warm orange overall (only highlights should be warm), plastic skin, modern clothing, casual outfit"
  }
}