An architectural touch can add visual interest to a blank wall, or a blank quatrefoil frame, or a wide stripe of trim. Perhaps a dragon, or a sun, or a face, or a geometric relief tile could create a visual focus.
Use field, patterned, and relief tiles in accent areas -- under rooflines, around and between windows, around doors, in stair risers, etc. Inside or out.
Wall sculpture, mounted outdoors, framed by architectural foam. Creatures, suns, masks, abstract designs, etc. can be used as focal points on walls, inside and out.
