If you have a large blank wall that you don't know what to do with, consider framing wallpaper! Get some trim molding cut to the proper size at Home Depot and paint it white. This makes for a dramatic (but inexpensive) piece of wall art.
Use patchwork wall designs for empty walls to make them more impressive. Patchwork wall designs can be different in pattern, materials and color combinations. Have a look our choice of 21 patchwork wall decor ideas.