PHASE 1: VISUAL DECONSTRUCTION - **Fabric Physics:** The source garment is a cable-knit sweater (likely cotton or wool blend). Unlike the user's current thin, woven shirt, this material has high volumetric thickness and weight. It has low specularity (matte finish) but requires high normal mapping to render the depth of the braided cable patterns. Light should diffuse through the knit texture (subsurface scattering) rather than reflecting sharply. - **Key Features:** The deep V-neck collar with dual white stripes is the primary focal point and must align centrally. The ribbed knitting on the cuffs and hemline provides structural tension. The vertical cable patterns must follow the distortion of the torso without losing definition. The white stripe detail on the wrists and waist must be preserved. PHASE 2: FIT & DRAPE SIMULATION - **Body Mapping:** Due to the seated pose, the sweater will not hang vertically. It will accumulate and fold horizontally across the midsection/lap area where the torso meets the legs. The sleeves will bunch significantly at the inner elbows (cubital fossa) due to the arm bend. The garment fits looser than the current tight black shirt; expect a slightly bulkier silhouette on the arms and waist to account for the knit's thickness. - **Occlusion Handling:** 1. **Hair:** The user's long dark hair falls over both shoulders and rests on the upper chest. This requires precise alpha matting to ensure the hair layers *on top* of the new sweater. 2. **Hands/Watch:** The user's left hand and wrist (wearing a watch) and right hand holding the bag must mask out the garment. The sweater cuff should naturally stop at the wrist bone or slightly cover the watch band, but the hands must remain visible. 3. **Bag:** The white handbag is held low and does not occlude the torso, but the user's right forearm resting near it must interact naturally with the sleeve. PHASE 3: ENVIRONMENT & LIGHTING - **Light Match:** The scene features strong, warm, directional "golden hour" sunlight coming from the back-right (rim lighting). The right shoulder and arm of the pink sweater must catch this warm highlight. The front of the torso is in soft shadow; the pink hue must darken accordingly without losing the pink saturation. Cast shadows from the hair onto the sweater surface are essential for realism. - **Color Calibration:** The source image is cool, flat studio white. To integrate into the target scene, the pink values must be warmed (shifted slightly towards orange/gold) to match the ambient outdoor temperature. The white stripes should reflect the warm sunlight, appearing slightly cream/golden on the lit side rather than pure #FFFFFF. PHASE 4: IDENTITY PROTECTION - **Facial Lock:** Absolute freeze on the facial region from the chin up, including the jawline, glasses, and ear visibility. The neck skin tone exposed by the V-neck must match the user's face perfectly. - **Body Integrity:** Strictly prohibited to slim or warp the user's underlying physique. The wide-leg jeans and the position of the legs must remain untouched. The "bulk" of the sweater must add to the user's silhouette, not replace the body volume with a pre-set model shape.