An efficient system and method for mounting an image composed of a plurality of subimages comprises a back panel onto which the subimages are mounted, and a transparent or translucent cover plate. In the preferred embodiment, the images are printed on borderless labels having a low-tack or low-aggressive type adhesive. The back panel and transparent cover plate are preferably dimensionally the same, and both may include aligned through-holes. The back panel may includes visual indicia such as score lines or alpha/numeric placement indicia to aid in mounting the subimages. The back panel and cover plate are preferably held together with a plurality of clips. An assembly method is also disclosed.