The problem with it is the art is so ugly and dated. Bruce Timm and the artists who did the DCAU were honestly geniuses; the art style was clean, simple, and yet very recognizable. And in the context of a game like this, very easy to draw porn of.
As much as I loved the previous X-Men animated series, it's art style just isn't up to snuff. You can try adapting the more modern art style from X-Men Evolution, they have plenty of female characters. In my opinion, it's too simple though.
If you'd adapt a Marvel H-game, it would probably be better to go for the comic designs and art style.
I'd also suggest not going with a "tech" hero like Lex Luthor is, because SU already does it. I'd go for psychic mind control and corruption; Marvel has plenty of telepaths like Exodus and Mastermind. You can even get more if you use a "hero" PC, like Nate Grey.