Hmmm, well done. The likeness is amazing, I picked hiom before I saw the name. I think the background works well and looks like he did in the movie sahara, hence the colour. I would suggest you do something like this, but a picture of you for your icon.
Very nice! What made you pick this subject? There's quite a market for this within the entertainment media. IE: Entertainment Weekly mag and stuff like that. If that's where you're headed, I wish you much success!