wow, this has gone over a lot of changes since my last look, awesome!
Just one thing, the amounts of rolls are just too much, they look wicked, but take away from the original concept. and yeah, bend those legs! not in the t-pose, but when you pose him.
last thing, his stomach does look like a tumor, fat doesnt look like that when it is stretched (like on the front of a stomach) maybe smooth it out and add that detail to the underside? :P