The addition of red/orange keeps this room from being gloomy. The room that I am redecorating has white woodwork instead of brown but I think that is a positive not a negative. I think I would lighten the wall color of this room a little.
Perfection- going to do 4 built-in desks at some point, for a complete "homework room". This color scheme (white desk, that blue wall color) is great, and love the star light fixture. Makes homework not SO serious.