Keep only the identity and facial features of the person in the uploaded photo as reference, accurately preserving the person's face shape, facial feature proportions, skin tone, hairstyle, age characteristics and personal recognizability, without changing the person's identity. There is strictly only one person in the frame. The person wears a light ice-blue and cream-white thin shirt with the collar naturally open, the wet fabric clinging to the shoulders and chest, forming soft underwater folds with a moderate degree of translucency; the collar, shoulders and cuffs are gently lifted by the water current, retaining realistic fabric texture, with no patterns, text or logos. The person wears small, delicate earrings. A hyper-realistic underwater female portrait, using an extreme close-up from the face to the chest. The person floats on her back in the water, the body arranged vertically, the face positioned in the upper center of the frame, with the shoulders, neck, collarbones and chest extending to the bottom of the frame; the face takes up the main area of the frame, and no full-body or distant shots are used. The hair spreads out naturally in the water, with strands floating toward the left and bottom of the frame. The head tilts slightly toward the right side of the frame and leans back a little, the face turned toward the camera, the bridge of the nose, jaw and neck connecting naturally. The eyes are fully closed, the eyelashes clear, the eyebrows relaxed, the lips slightly parted, moist and carrying soft highlights; the expression is quiet, soft, immersed and relaxed, as if sleeping or meditating in the water, showing no pain, fear or crying. The shoulders sink naturally, the arms are below the frame or at the sides of the body, with no hands raised to cover the face. An underwater frontal camera position slightly above is used, the lens shooting from close range above the person's face, with a 50mm to 85mm portrait lens and shallow depth of field. The focus is concentrated on the person's closed eyes, eyelashes, bridge of the nose, lips and the water patterns on the face, with the chest and shirt kept sharp, and the distant water and bubbles softly blurred, forming a quiet, immersive underwater look. The background is deep blue, transparent water, with bubbles of varying sizes floating around, concentrated around the person's head, shoulders and strands of hair and rising naturally upward. Light from the water surface penetrates the water from the upper right of the frame, forming clear, fine golden-white caustic light patterns that continuously fall across the person's forehead, brow bone, eyelids, bridge of the nose, cheeks, lips, neck, collarbones and chest; the water-ripple texture must be clearly visible, not appearing only in the background. The main light is golden-white volumetric light refracted from the water surface, the beams slanting from the upper right onto the person's face, forming flowing wave-like light spots; the person's face is lit by soft warm-white light, with delicate highlights appearing on the eyelids, tip of the nose, cupid's bow and the edge of the jaw. The ambient light of the water stays deep-sea blue, cyan-blue and indigo, with blue-gray shadows on the person's left side and in the background, the cold blue of the water forming a clear contrast with the warm golden light patterns, with no harsh flash, overexposure or overly dark face. The overall palette is deep-sea blue, lake blue, cyan-blue, ice blue, cream white and a small amount of warm gold; the image is transparent, cool and dreamy. Retain realistic skin pores, moist lips, water droplets, floating strands of hair, shirt fabric and bubble reflections; add soft haze, delicate highlight bloom, slight film grain and a cinematic underwater photography feel, the image hyper-realistic, serene and hazy. The person must remain floating on her back, with the face toward the camera, the head tilted slightly toward the right of the frame, the eyes closed, the lips slightly parted, the arms not covering the face, and the extreme close-up composition from the face to the chest. Do not generate open eyes, a toothy smile, crying, terror, an overly wide-open mouth, a side profile, a swimming pose, a standing pose or a distant full-body shot; no second person, extra arms, deformed fingers, hair completely covering the face, body sinking, or severely transparent clothing; no text, watermarks, logos, black borders, play buttons, progress bars, arrows, dots or other interface elements.
underwaterportraitcaustics