Somehow, I really like the idea of a rule 63 Kuja more than Rule 63 of anyone else. Maybe it's because he's so effeminate already, but it's very appealing.
Also tagging as gender bender because it's futa and it's obviously a female version of a male character.
EDIT:
Or, wait, is it? Apparently in the other doujin's he's still a he just with, ya know, tits and an even more feminine body.
But, this says futa... wait, maybe the japs don't differentiate between transexuals and intersex when it comes to futa. That would explain why I saw a post-op tranny in a futa tankoubon once.