If you are giving birth in a hospital, chances are there will be some art on the wall that is weird / outdated / not your style, or at the very least a big tv screen. The room is yours! Rather than just trying to ignore those things, you can bring scarfs, cloths, or tapestries to cover those eyesores. The cloth with change the way sounds bounce off the walls, and will make it just feel softer and more luscious in your room.
I am *obsessed* with this beautiful birth tapestry that a client of mine brought to their birth.