I've read more of your posts, especially the ones concerning your thoughts of the conceptart atelier.
I'd love to go there myself when I leave my own college, it whould be a worthy goal for me to reach. I'm concerned however that I may need more skills
Now concerning my ideas...
I suggest you play around with the compostion a little more, What is he looking at? Anwser questions concering if this is a story.
With the feet, they look ambiguous, I suggest moveing them, giveing them space, to help give a sense of perspective.
This is what I beleive a excellent example, I got this from the Temple of the seven golden camels. I found this a good example of feet placement to make for beleiveabilty in this post. Theres a lot of posts there concerning compostion over that place. I heard DanialC checks there.
Keep exploring possabilties in this works early stage.