PHASE 1: VISUAL DECONSTRUCTION - **Fabric Physics:** The source garment is a fitted, sleeveless crop top, likely composed of a cotton-spandex rib-knit blend. It possesses high elasticity and a matte finish. Unlike the user's current loose t-shirt, this fabric behaves with high tension, hugging the torso rather than draping loosely. Light interaction should be diffuse with minimal specular highlights, emphasizing the texture of the knit rather than sheen. - **Key Features:** The electric blue hue (#0044CC approx) must be preserved. The white dual-butterfly graphic centered on the chest is the primary focal point and must deform according to the curvature of the chest. The scoop neckline and the cropped hemline (ending at the natural waist, likely exposing the midriff above the skirt) are non-negotiable structural elements. PHASE 2: FIT & DRAPE SIMULATION - **Body Mapping:** Due to the user's "hands-on-hips" pose, the garment must conform tightly to the torso. The current "A-line" silhouette of the user's loose t-shirt must be ignored; the simulation must map the blue top to the skin surface. The armholes must be generated high and close to the axilla. Critically, since the source is sleeveless and the user is wearing sleeves, accurate skin texture inpainting is required for the user's upper arms/shoulders to replace the existing white sleeves. - **Occlusion Handling:** The user has significant volumes of dark, wavy hair cascading over both shoulders and the chest. A high-fidelity segmentation mask must be applied to this hair to layer it *over* the new blue top. The user's hands rest at the waistline; the hem of the crop top will likely land just above or touching the fingers, requiring precise depth sorting so the fabric does not clip through the hands. PHASE 3: ENVIRONMENT & LIGHTING - **Light Match:** The user is standing in soft, diffused natural daylight coming from the left (viewer's perspective), casting soft shadows to the right. The new garment must render with a highlight on the left breast/ribcage area and a gradient shadow wrapping around the right side of the torso. Self-shadowing from the hair onto the blue fabric must be generated. - **Color Calibration:** The source image was taken outdoors in overcast light (cool tone). The user image is in a warmer, likely semi-outdoor/balcony setting. The blue of the top must be color-graded slightly warmer to match the ambient temperature of the user's environment, ensuring it doesn't look like a super-imposed "cutout." PHASE 4: IDENTITY PROTECTION - **Facial Lock:** Absolute freeze on the user's facial geometry, expression, and makeup. The jawline and neck transition must remain untouched. - **Body Integrity:** Strict prohibition on body warping or slimming. While the new garment is tighter, it must conform to the user's existing biometric volume. The skin tone generated for the exposed arms (where sleeves are removed) must perfectly match the user's existing face and leg skin tone.