It looks pretty cool so far. The only minor thing that bugs me is the positioning of its right hand. I'm not completely sure because it looks fine in the sketch stage, but right now it seems like he has a fairly long right upper arm. I think that just pulling the right hand up a little or changing it's angle a little bit downward could help. Now maybe I'm completely wrong, but maybe it's worth trying out just in case XD
Other than that, I have nothing else to say. I really like the direction it's going.