Place big or extremely spectacular artwork on the wall by itself. Otherwise, place the paintings around a sofa, mattress, side table or credenza. The paintings together should be somewhat smaller when compared to the piece of household furniture, but not a lot smaller which they look tiny as compared. http://photowallhanging04791.bloginwi.com/17184983/not-known-facts-about-how-to-hang-3-different-sized-pictures