Video game character designs

Here are some character designs I did for a contest hosted at ConceptArt.org, for a professional video game production. The task was to design the characters based on the description provided in the post.
I didn't win, but I still like the designs, and since I didn't have time to finish them for the contest, I decided to finish them as a nice portfolio addition.

I still need to ink and paint Agent Cookie and Hugh Jigo, but I won't really have time for it during the next couple of weeks, so I figured I might as well upload what I have so far and add the other two later. :)

The color designs are painted with Copic markers.