PHASE 1: VISUAL DECONSTRUCTION - **Fabric Physics:** The source garment appears to be a medium-weight cotton or cotton-linen blend with a matte finish. It possesses a semi-structured drape, holding its shape at the bodice while allowing the tiered peplum ruffles to flare with gravity. Light reflection should be diffuse and low-specularity (no high gloss), consistent with natural fibers. - **Key Features:** The transfer must preserve the specific magenta hue with white "Ikat" style vertical patterns. Crucial structural elements include the V-neckline, the short cap/puff sleeves, and the distinct double-tiered ruffled hemline (peplum style) that creates a flared silhouette at the waist. PHASE 2: FIT & DRAPE SIMULATION - **Body Mapping:** The source garment is fitted at the bust and flares at the waist. On the target user, the bodice must follow the curvature of the torso, replacing the current loose, boxy red shirt. The shoulders must be re-mapped to the user's natural shoulder line (retracting the current drop-shoulder seam). Since the target is moving from long sleeves to short sleeves, the system must generatively reconstruct skin texture on the user's forearms where the current red sleeves exist. - **Occlusion Handling:** The user has long, thick dark hair cascading over both the left and right shoulders onto the chest. This is a critical occlusion layer; the hair mask must be segmented and composited *over* the new pink garment. The user's hands are positioned near the hips; the lower tier of the peplum ruffle may brush against the wrists and must interact naturally without clipping into the hands. PHASE 3: ENVIRONMENT & LIGHTING - **Light Match:** The user's environment utilizes soft, diffuse indoor artificial lighting (likely fluorescent or cool white), creating a soft shadow on the wall to the user's right. The source garment, currently lit by natural daylight, must be relit to match this flatter, indoor profile. High-contrast highlights on the pink fabric must be dampened. - **Color Calibration:** The magenta of the source cloth is highly saturated. To integrate realistically into the user's scene, the vibrance must be slightly desaturated and the color temperature cooled to align with the grey/white balance of the room, preventing the shirt from looking like a pasted sticker. PHASE 4: IDENTITY PROTECTION - **Facial Lock:** Absolute pixel preservation is required for the user's face, specifically the glasses frames, eyes, and skin tone of the face and neck. The earrings and the specific volume/texture of the hair must remain untouched. - **Body Integrity:** The simulation is strictly forbidden from warping the user's waist or hip width to match the slimmer silhouette of the source model. The target user's torso width must dictate the fit of the bodice. The jeans and lower body posture must remain exactly as they are in the user image.