I love the composition of this. Especially how all the lines in some way point up. I also really like the weight that you gave the figure. Not so much in a heavy/thin way, but in a mass way. It looks like it's actually standing there.
I really like it! the perpective is awesome. the only thing that catches my eye is the value of the left forearm looks lighter than the rest of your dark edges.
Either way, it's very well done. ^_^
great work indeed