Here's a bit of the progress of the main character from sketch to model to final colored version. I'm still not too happy with the colored version of the main character, so I might still put some work into those before I post the renders up.
Here is the full body render of my main villain which I've only so far referred to as the fat man, or also as "Bad Fat" as I've named him in my file names. I did come up with quite a bit of a back story for him, but the important part is that he's really fat, evil and immobile, so he uses his mechanical equipment to pilot huge menacing robots. Not the most creative villain, but I never said I was a writer.