It looks like you had a bit of trouble with the knees and feet. All of the body has dimensions, shading, shining, and general textures that make it realistic enough for the human brain to accept that "this is a human". Everything but the clothes themselves. In addition, I see that the knees aren't situated in a position that would make that stance possible. Though I would like to know how you did such a good digital drawing. Unlike many, I can only do the traditional drawing style.
-So, what's your story on this? ^__^