Well, I tried to fix it a bit. It looks a bit odd but better than before IMO.

 I was kind of trying to go for the old E Honda type of look :\

http://www.sushi-suzuki.com/sushilog/wp-content/uploads/2012/11/EHonda.png

 I like the style you were going for but what really bothered me was the defined muscle in the abdomen despite the obvious obesity of the character. If the belly is supposed to be full then you should make the shading more round instead of blocked to demonstrate that. 

It seems like you weren't sure whether you wanted to make him fat or muscular. If his belly is that large, then it contains heavy layers of fat that would obscure the muscles of the abdomen.