I might be able to help with the "hot alien chicks being used by human dudes" part. At the very least, I can hook you up with links to art of hot naked alien chicks. Though, of course, YMMV on whether any given Xenogirl pic is hot.

That’d be cool. Feel free to submit things through the submit/ask links here. I’m not much into Daz3d (and similar) rendered stuff, but if it’s particularly well done, it might work as well.