Thumbnail AI thay outfit bán hàng online

Create a complete vertical 9:16 promotional thumbnail/poster for an AI tool, not a plain single image. Use [ảnh người mẫu] as the exact female model reference and [ảnh sản phẩm] as the exact outfit reference. Design a Vietnamese social media poster that promotes an AI tool which automatically swaps outfits on a female model for online selling. Show one large hero image of the model wearing the target outfit, a smaller input image frame, a smaller output frame, outfit-detail close-up, and 3 feature badges such as fast, realistic, and easy to use. Add a bold Vietnamese headline and a short subheadline. Make it clean, commercial, modern, realistic, and easy to understand. No watermark.