PHASE 1: VISUAL DECONSTRUCTION - **Fabric Physics:** The source garment is structured leather with a mixed-media construction. The sleeves and side panels are smooth leather, requiring high specularity (shine) and stiffness; they should not ripple like fabric but rather crease sharply at flex points. The front panels feature a woven/checkered texture which must retain a matte-versus-glossy depth map to preserve the 3D relief effect of the weave. - **Key Features:** The silver central zipper hardware, the mandarin/stand collar, and the intricate woven leather pattern on the chest panels must be preserved with high fidelity. The cuff structure and the fitted waistline silhouette are critical design elements that must remain distinct from the underlying body shape. PHASE 2: FIT & DRAPE SIMULATION - **Body Mapping:** The source jacket is a fitted cut, whereas the user is currently wearing a loose tunic. The simulation must ignore the loose volume of the current maroon kurti and map the leather jacket closer to the user's actual anatomical torso. The jacket shoulders should align with the user's acromion points, and the sleeves should maintain a cylindrical rigidity, tapering at the wrists without sagging. The hem of the jacket sits higher than the current kurti, so the simulation must seamlessly blend the transition to the user's black trousers. - **Occlusion Handling:** CRITICAL: The user has long, thick hair cascading over both shoulders and down the chest. A high-precision segmentation mask must separate these hair strands; the leather jacket must be rendered on a layer *behind* the hair but *in front* of the torso. The gold bangles on the user's left wrist must also be segmented and placed as the top layer over the jacket cuff. PHASE 3: ENVIRONMENT & LIGHTING - **Light Match:** The user's environment features a studio setup with a primary key light coming from the front-left and a distinct green rim light/backlight on the left side. The leather material must reflect this environment: the left sleeve (viewer's left) should catch the green rim light, while the front right of the jacket should show soft shadowing consistent with the user's face shading. - **Color Calibration:** The source jacket is a warm brown. To sit naturally in the user's slightly cooler, high-contrast lighting environment, the saturation of the leather should be slightly desaturated, and the highlights on the leather must match the white/cool tone of the studio lights rather than the warm studio reflection of the source image. PHASE 4: IDENTITY PROTECTION - **Facial Lock:** The user's entire head, facial structure, skin tone, and makeup must be strictly frozen. The hair geometry is inviolable and must be treated as a foreground collision object. - **Body Integrity:** The user's torso width and shoulder breadth must be preserved. The jacket must be resized to fit the user's proportions; do not warp the user's body to match the slimmer waist of the source model. The lower body (black pants) and hand positioning must remain unaltered.