Youve got some obvious talent, I can only make a few corrections. The right hand (making the beam) and soe aspects of his face could use improvement. It looks like you sketched so much that it smeared, also.

That's good!^_^ Lots better than me!

Good work on the eyes, but the fact that it's so sketchy brings this pic way down what it could be. If you could rework your lines a bit, it would be beyond awesome.