PHASE 1: VISUAL DECONSTRUCTION - **Fabric Physics:** The source garment is a structured lightweight denim or chambray. Unlike the user's current flowy rayon/synthetic shirt, the denim has higher bending stiffness. It will not cling to the skin but rather hold its own shape, particularly at the puffed sleeves and the ruffled peplum hem. Light reflection should be matte with characteristic specular highlights only on the ridges of the fabric folds and seams. - **Key Features:** The structural "puff" of the sleeves (with elasticated ruffle cuffs) is critical and must replace the current flat sleeve silhouette. Preserve the Peter Pan collar with ruffle trim, the vertical pleating/tucks down the front bodice, the brass-toned buttons, and the flared/ruffled bottom hemline. PHASE 2: FIT & DRAPE SIMULATION - **Body Mapping:** Due to the user's pose (leaning left against a tree, right hand on hip), the denim blouse must respond to compression. The left sleeve puff will flatten slightly against the tree bark. The right side of the hem (peplum) must interact with the right hand on the hip—either draping slightly over the thumb or bunching just above the waistband of the jeans, depending on length relative to the torso. The collar must sit higher on the neck than the current garment's V-neck. - **Occlusion Handling:** Major occlusion management required for the user's hair. The long dark waves fall over both the left and right clavicle/shoulder areas; these hair segments must be masked and layered *over* the new denim collar and shoulders. The tree trunk on the left is an environmental occlusion; the left sleeve must not clip into the wood texture. PHASE 3: ENVIRONMENT & LIGHTING - **Light Match:** The user is in a soft, diffuse outdoor daylight environment with ambient light bouncing off the yellow vehicle and pavement. The studio-lit, high-contrast shading of the source denim must be softened. Shadows on the garment should be cast downwards and slightly to the user's right, matching the shadow under her chin. - **Color Calibration:** The source garment is a cool, studio-blue indigo. This needs to be warmed slightly to match the outdoor color temperature. The denim should reflect subtle ambient yellow/brown tones from the surrounding street and tree to integrate realistically. PHASE 4: IDENTITY PROTECTION - **Facial Lock:** Absolute freeze on the facial region (eyes, nose, mouth, smile lines) and the neck skin tone. The user's hairstyle and volume must remain pixel-perfectly identical. - **Body Integrity:** Strictly forbid warping or slimming of the user's torso to match the source model's thinner frame. The garment must be volumetrically expanded to fit the user's natural waist and bust measurements while maintaining the fitted aesthetic of the denim bodice. The user's existing jeans must remain unaltered.