More to explore:
Great boy's room idea
Teenage boy's bedroom | Boys' bedroom ideas - 20 best | housetohome.co.uk like the skateboard on the wall
Teen Room Decorating Ideas, Teen Bedroom Designs, Pictures of Teen Bedrooms (little less clutter would be good for a study area)
Splash of colors
IKEA Hackers: Cool teen bedroom workstation
Great Ideas for teen bedroom makeovers!!!!
Kindergartens, Norway | 70ºN Arkitektur -- sleepy space or time out space? Either way, I'd hang out in here.
cool bed rooms | 11 Design Modern and Cool Teen Bedroom Pink Teenage Bedrooms Modern ...
Nest Studio: Accessories
the boo and the boy: Rooms for teen boys
Kids Room With the potential to be quirky and whimsical, gallery walls are perfect for kid's rooms. Learn more at Hoo.
Like this wall design ... change green to blue-gray color. Or, could use two colors very close in shade - or same color w/different sheens - for a very subtle yet interesting design.
Israel's room by AMM blog, via Flickr