Maybe not the pose but I think with those twigs for legs, he'd be extremely wobbly. And I think it's because you just don't want to bother doing them. With every body else having shaded legs he looks out of place.

That pose looks extremely uncomfortable.

I've really takin' a liking to this. I like the darker image more because the sun is directly behind him, hence the dark shadowing. Though the colors need to be more abrupt, like they need to go from light to dark really quickly.

Here's an edit.

Wow, that's much better. just add another leg and make him jump!