colour help ?

[Bee]

trying to improve my colouring and lighting
c&c greatly appreciated
using mouse, in ps

I tryed to make a simple background for the dragon, but was completely unhappy with result.. any suggestions for quick, better backgrounds?
Thanks! :)

http://becca.atomkinder.net/paintings/face.jpg


http://becca.atomkinder.net/paintings/dragon/d4.jpg


http://becca.atomkinder.net/paintings/dragon/drragonl.jpg