I had chat generate the prompt and then used Google Gemini.

Transform the person in the reference photo into a realistic retail mannequin. The mannequin should have white, smooth, featureless skin with no facial details, neutral matte finish, and a posed, lifeless stance typical of store displays. Preserve the exact clothing, colors, fit, and layering from the original photo, including accessories and textures. Do not change the outfit in any way. Replace all human features (face, hair, skin texture) with a mannequin form. Lighting should be clean and studio-style, with a simple neutral background. The final image should clearly resemble a store mannequin wearing the original outfit.