First of all, let me say that a line of low poly toon figures for Poser is a great idea. I think the models are wonderful to look at. You've captured the look of a lot of recent cartoon heroes.

I do find the big hulk's proportions a little strange. I think it's the combination of long legs, no neck, and short torso that is throwing me off. Many big guys have a big torso and short, stubby legs -- being top-heavy gives them character. I wonder if a longer neck might help, or if elongating the torso slightly while shortening the legs might also improve the look.

I'd love to see some more renders when you think they're ready.