When your little one is ready for a more grown-up room, turn to wall art to make a statement. Transform a space, without tons of effort, with the help of a photo or stretched canvas that will add a touch of maturity to your big boy's room. These pieces are colorful and cool, easily blending in with any decor, and capable of growing up with your son. Pick one to create a big impact or a few for fun accents. Click through for a collection of wall art that is sure to please your maturing tot.