From my art tumblr inbox:

What is Zataan's favorite bodyshape to be in- normal, fat, musclechub? - ravenfawkes

Being a Cheshire cat, Zataan can choose whatever form he wishes, be it tall, short, strong, thin, fat, anthro, feral, or even different species! So of course the one he's seen using most often, the tall broad-shouldered anthro cat in a suit, is his preferred 'default' state.

He likes this look, mostly because of the contrast. One usually does not associate large muscles with a clever trickster, nor someone with enough class to wear a tailored suit. Having a belly can be fun, of course, in the right situations, and he doesn't -need- muscles to be powerful, but this particular look is one of his favorites.