PHASE 1: VISUAL DECONSTRUCTION - **Fabric Physics:** The source garment appears to be a medium-weight woven cotton or cotton-blend with an Ikat weave. It has a matte finish with low specularity (no shine). The physics engine must simulate "structural fluidity"—meaning the fabric holds the shape of the tiered ruffles and the puff sleeves without collapsing, yet maintains enough flexibility to sway with movement. - **Key Features:** The specific pink hue with vertical white blurred Ikat geometric patterns must be preserved. The tiered construction (double-layer peplum flare starting at the waist), the square/wide neckline, and the structured cap/puff sleeves are non-negotiable geometry. PHASE 2: FIT & DRAPE SIMULATION - **Body Mapping:** - **Sleeve Transition:** The target is wearing long sleeves, but the source is short-sleeved. The simulation must inpaint realistic skin texture on the target's forearms to replace the green fabric. - **Waist/Hip Interaction:** The peplum flare of the source garment must originate at the user's natural waist and flare outwards over the hips. Given the user's pose with thumbs in pockets, the fabric simulation must calculate collision volume so the bottom ruffle rests naturally near the hands without clipping through them. - **Torso Fit:** The bodice needs to contour to the user's torso (which is slightly angled) before releasing into the ruffles. - **Occlusion Handling:** The user's thumbs and knuckles are hooked into the jean pockets/belt loops. These hand segments must be masked as a foreground layer, ensuring the lower ruffle of the pink top tucks behind the hands or drapes naturally around the wrists, not over them. The thin gold necklace must be segmented and layered on top of the new garment's skin exposure area. PHASE 3: ENVIRONMENT & LIGHTING - **Light Match:** The User Image features soft, diffused indoor lighting (studio-style) with a warm beige background. The source garment has outdoor daylighting. We must neutralize the daylight shadows on the pink top and apply a soft ambient occlusion map consistent with the user's room. Shadows should be minimal and soft, falling slightly to the user's right/rear based on the curtain folds. - **Color Calibration:** The source pink is vibrant. It must be color-graded to ensure it doesn't look "pasted on." We need to remove any green color bleed (radiosity) on the user's neck/jawline caused by the original green shirt and replace it with neutral or slightly pink-reflected light. PHASE 4: IDENTITY PROTECTION - **Facial Lock:** The user's entire head region, including the jawline, smile, and the hair falling behind the shoulders, must remain pixel-perfectly frozen. - **Body Integrity:** STRICT PROHIBITION on warping the user's torso width or arm thickness to match the source model. The garment mesh must be expanded to fit the user's body geometry, preserving her natural silhouette and stance.