Interior Design help!?

Maybe paint your walls a light green, then go with tiffany blue box sheets with a cool pattern. It would be cool if you had a white chair rail or bead boarding. Anyways, as you mentioned, you looked at pbteen.com but I'm not sure if you typed in design your own bedding on the search bar. there you can go crazy with patterns and pillows. Another cool feature is you can change the color too. Because once you buy the sheets and pillow covers, you need to have the pillows and comforter, so I would go to Ikea. I hope this helps you!