hm your blending could use some work for sure. lighting is alright, but it doesnt look like you really tried to make a point of working on that. but i think your biggest thing is definetly work on just merging the foreground with the background. they look like two separate pieces (oh and thanks for bothering to update the post )
Looks pretty good, I'm a huge Crysis fan, so Me Likey. However, add a lightsource, and it seems too bright almost. I'd say either add a simple C4D or a few effects.
yeah.. school is getting to ur head. Needs Blending, more Depth, Flow, and better Lighting. It looks like a render slapped on top of a blurred BG.
**** that's a high quality render! but it could definitely use some blending and a completely different BG, overall decent though