PHASE 1: VISUAL DECONSTRUCTION - **Fabric Physics:** The source garment appears to be a lightweight Cotton or Rayon blend with a matte finish. It possesses a "semi-structured" drape—specifically in the puff sleeves which hold their volume, while the peplum bottom flows freely. The material should scatter light diffusely with no specular highlights (unlike silk or leather). - **Key Features:** The intricate gold/beige geometric block print pattern must be preserved with high fidelity. Critical structural elements include the gathered "empire waist" seam, the V-notch neckline, and the elasticated cuffs of the puff sleeves. The volume of the lower peplum section is essential to the garment's silhouette. PHASE 2: FIT & DRAPE SIMULATION - **Body Mapping:** The garment must fit snugly across the target's shoulders and bust, then release into a flared drape immediately below the bust line (empire cut). Unlike the user's current form-fitting top, the new garment will stand away from the body at the waist. *Crucial:* The source garment has short/elbow-length sleeves, while the user is wearing long sleeves; the simulation must generate/in-paint realistic skin texture for the user's forearms where the current black sleeves cover them. - **Occlusion Handling:** The user's long, dark hair falls over both shoulders and rests on the upper chest. These hair strands must be segmented and layered *over* the new garment. The watch on the left wrist must remain visible and untouched. PHASE 3: ENVIRONMENT & LIGHTING - **Light Match:** The user is in an outdoor environment with overcast, diffuse lighting (soft, cool, shadowless). The source garment is currently lit by bright, warm, directional sunlight. The new garment's texture must be neutralized: remove the high-contrast cast shadows and warm yellow tint, and apply a flat, soft ambient occlusion consistent with a cloudy day. - **Color Calibration:** The gold/beige print on the source garment needs to be slightly desaturated and cooled to match the blue-grey ambient light of the mountain background, preventing it from looking artificially bright or "pasted on." PHASE 4: IDENTITY PROTECTION - **Facial Lock:** The user's facial features, jawline, neck, and hairstyle must be absolutely frozen. No alteration to skin tone on the face. - **Body Integrity:** Strictly forbid any slimming of the user's torso or arms. The wide silhouette of the peplum top must add volume naturally rather than shrinking the user's waist to fit the clothing model's proportions.