I'd use our Multi Rags to Riches Rug in the room for a few reasons. 1 - It's a thinner style rug, which works well layered over carpeting. 2 - It has a ton of colors that you can pull from for the rest of the room. 3 - The pops of dark colors will help ground the room and make the pastel bedding marry better with the dark furniture. 4 - It's happy and has a sparkle to it, and what girl doesn't need a little sparkle in her room?