This is not your average "flat relief engraving," nor is it simply "painting" an image on the surface. First, through layers, depths, curves, and variations in light and shadow, the portrait is sculpted three-dimensionally onto the silver coin. Then, it is naturally hand-dyed black without using any coating. Repeated polishing enhances the texture, ultimately revealing rich details that can be seen and touched. Only in this way can it be called "relief" customization. When providing photo options, please choose clear, bright photos with a complete subject. The higher the resolution of the original photo, the richer the details will be during engraving, and the better the final product.