Light source for Fatass

[Teuthida]

Not sure how I should do the shading for this picture. It's gonna be in my usual solid shape style (http://www.deviantart.com/view/9163323/) to shade but not sure on where the light source should be. Any suggestions? Background ideas welcome too.

*Ignore the transparent "Danchastu"s and on the finished pic "Fatass" will be written in grafitti on the hippo's back.

[DarkMaster]

I guess you could just do the light source coming down from above, unless you want something a little more dynamic. Probably better off just doing some very simplistic shading, as the picture looks pretty good even without shading.

In terms of a background, what exactly is this going to be? Just a regular pic? Kind of depends on what it's going to be used for. Something simple and stylish like the kill bullet bill pic would be good I think.