PHASE 1: VISUAL DECONSTRUCTION - **Fabric Physics:** The source garment is a ribbed knit jersey material with high elasticity. Unlike the user's current loose woven shirt, this material has a matte finish and is designed to contour tightly to the skin. Light absorption should be high with soft, diffuse highlights on the ribbing ridges. - **Key Features:** The vertical ribbing texture is the primary detail that must be preserved to maintain realism. The wide square/scoop neckline and the reinforced stitching at the cropped hemline and sleeve cuffs must be clearly rendered. PHASE 2: FIT & DRAPE SIMULATION - **Body Mapping:** The transition is from a loose, oversized fit (current red shirt) to a "bodycon" tight fit (target pink top). The simulation must estimate the user's true torso volume beneath the loose red shirt to apply the crop top correctly. The fabric should stretch slightly across the chest and conform to the curve of the waist, ending well above the waistband of the user's grey bottoms. On the right arm (bent at elbow), the short sleeve will sit higher and tighter on the deltoid compared to the current loose sleeve. - **Occlusion Handling:** High-priority occlusion detected: The user's long dark hair flows over both shoulders and covers a significant portion of the upper chest. This hair mask must be segmented and layered *over* the new pink top. The user's right hand is placed at the hip; given the crop top's length, the hand will likely rest on skin or the pants, but the forearm must remain in front of the garment's side seam. PHASE 3: ENVIRONMENT & LIGHTING - **Light Match:** The user's environment has warm, artificial overhead domestic lighting, creating soft shadows under the nose and chin. The source garment is currently under neutral, flat studio lighting. The new garment must accept a warmer color temperature (slight yellow/orange cast) and generate downward-casting shadows beneath the bust and along the lower ribcage to match the room's light source. - **Color Calibration:** The source magenta/pink is vibrant and cool-toned. It needs to be graded to match the contrast levels of the user's photo. The brightness of the pink fabric should be lowered slightly to match the exposure of the user's skin in the indoor setting to avoid looking "pasted on." PHASE 4: IDENTITY PROTECTION - **Facial Lock:** The user's face (eyes, smile, jawline) and neck area must remain frozen and pixel-perfect. - **Body Integrity:** Strictly forbidden to warp or slim the user's body to match the source model's thinner frame. The garment must expand to fit the user's natural curvature. The exposed skin at the midriff (created by the crop top) must match the user's skin tone sampled from her face and arms, not the source model's skin.