I think you're off to a great start. The furniture, bedding and wall colors are attractive and modern. I doubt you want to spend a lot of $$$$ on the space so I'd start with a few colorful accessories (lamps, a throw for the bed, etc.). Do you need a clothes hamper? A beautiful basket might be a nice addition. How about a plant or two?

Keep you eyes open for some inexpensive art pieces that speak to you. Hit a few garage and estate sales and see what you can dig up. Posters can be a good option too. Measure carefully then head to Michaels, coupon in hand, and buy pre-made frames for little cash.

Take your time and have fun. And be sure to leave a little space for your brother.