Tank Character

Here's a little piece for an illustration class. This would be a tank character in a mmorpg type of game. The body type is obviously exaggerated and overall I thought that it came out okay.
And does anyone know why I can't submit GIFs in some of the categories? It seems like a severely retarded policy since saving a black and white line drawing as a gif ends up about half the size of having to do a jpeg.
Also, I made this bigger, I don't know why it was uploaded so small, weird.