When planning out your pieces, don’t forget that art can be more than just a picture in a frame or a painted canvas. Art comes in many forms, shapes, and sizes.
Sculptural pieces are great and can be very minimalistic and understated or very dramatic. Either way, they add another point of interest to your space that does not stop short of a frame. Collections that can be displayed hanging on the wall, such as dishes, are also a nice alternative. Mix shapes, sizes, and color or keep it toned down with one pattern.