I was hoping someone would make a wall out of this image; I like how you kept the feeling of the original image; the only thing that bothers me a little is the place where his hand meets his sleeve: the sleeve bumps a little, and so does the arm! why? It's obvious that his arm doesn't bend like that, if you look at it as a whole. You could straighten the outline of his arm in that place. Other than that, good job.