Will he survive? (if it’s his last stand probably not)
Remove the spaces from your img tags.
The marine’s torso looks like it’s turned at a bit of an odd angle.
Stick the buts in
The cam angle is bad, try to get closer and zoom in
Turn up your AA all the way
(User was banned for this post ("Be constructive or don't post" - UberMensch))
It’s also kind of odd that the muzzleflash isn’t emitting any light.
turn up your graphics! and do what egg_toaster says