This is a pretty good picture overall, Myth, but there are a few adjustments you might want to look at.
I think the legs are awesome, but they are much bigger in comparison to the rest of the body. It'd probably be easier trying to adjust the rest of the body to the legs a little.
Also, look at what your own arms do when they are in the position that you drew them in. The way you drew them seems unnatural. I am not a pro by any means, but when my fiance (an amazing artist) needs to see something for an odd pose or something, he will either do it himself in a mirror, or ask me to pose for a minute for him. It really helps to see what something should look like. Even if you're drawing more cartoony or anime things, you get the idea of what they should look like.
Those are my two biggest critiques. I hope that helps a little. Like I said, I love the drawing overall. It's probably better than something I could do. i'm better at faces, and clothes and such, not so much poses or dynamics.
Today, Friday, October 10, 2009, is my last day on RolePlayGateway.com.
Everyone give me lots of love, because I shall be handing lots out. <3