I think that if you really wanna go out there, you should definitely splatter paint on SOME of the walls in opposite colors of the backround. if you want something classy or chic, you should try a wall with just a simple stencil like painting like a flower or something. but, another wall can be splattered, another can be a collage or your photos or photos of things you like. The room can have different section walls for whatever mood you feel like!