Gears of War practice

So we have a contest going on at school in Concept Art Club, designing stuffs for the Gears of War sequel (namely an NPC "survivor," a boss monster, and an environment).

In order to get into the mood (since I don't have an XBox360) I did some practice drawings and this is one of them.

Started one day with silhouette sketches, went back to one of the silhouettes last night and added the rest (this one's for you, pro-chris, since you seemed to like this silhouette the best).