I know this design seems familiar. I certainly watched "Earthworm Jim". A lot of people have done the reverse scuba suit thing. It was kind of popularized by SpongeBob. He vaguely reminds me of Klaus from "American Dad!". Mechs of any kind are cool.
It's nice just to look and see all the weapons that are on this guy. He seems to have a pretty bored look on his face. It looks like the machine gun is his whole arm. Orange is my favorite color, so it's all the more appealing to me. It's just a cool concept.