Nice!
defenetively worth blizz fan art's a spot, do you do wow fan art too?
like the highlights on the character suit, but, it would look sharpewr if you would add more red highlight on the side lit by the red flashing lights on the background , because they are hard to notice a little bit, also for ambience, the background could use more dark spots, like play with contrast to make it more spooky, that way the zergs in the background look more scary ( even if they are dead) but thats just suggestions, mabie you could experiment a bit with the light/dark contrast and see how best it suits you