Zimmy Vortex

In honor of my acquisition of the final DVDs of Zim! I don't draw them too often anymore (although I have a ton of old pics that I haven't posted because... they're old. And they suck. But there are a few I'm planning to re-do), and I don't have any clear idea why. That aside, I'm not entirely sure what's goin' on here. It looks like the crew is gettin' sucked into som sort of vortex-thingy. That's one crazy BG, no?

And I realize that the style isn't quite right. You can be nice and overlook that, can't you?