Played the game with a friend, and it was a fun ride. I'm a graphical artist myself and what i liked the most in the game was the characters. (Though the shotgun guy was kinda frustrating, shooting me in the face over and over again.
Great designs, would be cool if you'll try to render them with a realistic style too!
Actually, I made his gun grenade launcher, but from the start the character was referred to as the gas heavy, and I think that was because he was originally going to shoot gas canisters, hence the gas mask, and the name gas gun boss