Cool man Its good your drawing action poses. its demands effort to do that. Cute char :P. If you get a chance you should check out the anime series They Slayers TRY. theres a fun fox character in it named Jillas. they usually make him a comical character but he tricks the other main chars at some point and later on becomes an ally of the main chars. its fun to watch the way he is animated. I see a lot of anime in your drawing.

Anyways keep sketching. I got as good as i did by spending my whole life drawing by hand. :P