I really like this 4 piece set.  The paper prints are set back a bit almost to create a shadow box effect, rather than having a mat around the piece.  One print is quite different than the other three, and is my favorite, but overall they are all lovely.  May be a bit tricky to hang and get exactly level and evenly spaced (which is key to me) but when you do, I think they make a nice arrangement, especially on a larger space.