It's tough to jump styles. I mean I did this, and I think it's pretty damn good.
(Edit: This is an original character)
and this
Admitedly Dorothy kind sucks in that pic....
But I couldn't do that in Groening style...
At least, not without practice. I've got another pose of Leela in my head, as well as a group shot I may tackle someday.
The group idea is a "behind the scenes" type shot that's been done for other shows (maybe this one too) where you can see them out of character, see the sets, the lights on the sound stage, etc.
For that I have to do many characters, so it will be some time coming....