Poster AI tạo catalog nhiều màu sản phẩm

Create a complete vertical 9:16 promotional thumbnail/poster explaining an AI product color-variant catalog workflow, not a plain single image. Use [ảnh người mẫu] as the exact female identity reference and [ảnh sản phẩm] as the exact original product reference. Build a clear 3-step workflow: Step 1 shows the original female model with the original product color; Step 2 shows an AI color-selection interface with several [màu sản phẩm mong muốn] swatches; Step 3 shows a polished catalog output where the exact same female model, face, hairstyle, pose and product design are preserved while only the product color changes across multiple clean preview cards. Make one large final catalog image the hero visual. Include arrows, smartphone or e-commerce UI frames and Vietnamese badges such as 'Giữ đúng thiết kế', 'Đổi màu nhanh', 'Đồng nhất người mẫu', 'Tạo catalog hàng loạt'. Do not change product shape, do not change model identity, no video interface, no watermark.