Looks spot on now. Just get his belt and weapon mapped, render off some nice poses and wires, and think of what youre gonna do for the next comp!
I think youre in with a pretty good chance. Only a few are close to this quality, and many, many entries look as if they wont make the deadline.
Is his skin normal mapped or something? it looks really detailed, yet your WIP shots are viewport caps?!
Outstanding work! Id love to see him in doom 3 



