Typically, the first thing I do when I come across an adult games website is to criticize any thing on that website that is counter productive to selling that game. But your website puts all the information upfront and I like that.
But first thing is first however, your website offers a Girlvania Minimum.exe download that can check if a computer could run your software. However, when I downloaded it, it was removed by Norton's Anti Virus after an automatic heuristic scan flagged your download as "Suspicious.Cloud.7.EP". While I'm willing to say that this is a false positive, it could be enough to scare off willing customers from game. (I didn't run the exe by the way, the information in dxdiag affirms that my computer should be able to run Girlvania, so I saw no need to override Norton).
EDIT:
Well anyway, I get the impression that your game was made for lesbians by lesbians, as it seems to lack actual penis. I'm sorry, but whether or not I can use a fully functional cock that I can do what ever I want with is deciding factor for me. Now I'm not saying that you need to update the game with a male model for me to buy that game, but I would settle for something along the lines of a "
Futanari" potion that enables use of a fully functional penis.