One very important thing when talking about hentai games is the sexual organs viewed when the character is nude or having sex. I usually try to have the sex be very clear and detailed, as in very visual so the player can tell what's going on. With vaginas (and penises) I generally try to use the best quality resources I can(though if the vagina you want body is on a different body it can make it harder to get it the way you want). I have pretty already decided on which ones I would like to use in my games though.
Just in case you guys are curious about the vaginas, below(after the jump-->) is a image showing different vaginas, of various quality, low-res to high-res, 2D and 3D, and some with different opening/closing states. I'm just posting so many of them to show the variety, for my games I was only planning to use about 5 of them.
Feel free to post on which ones are your top 5 favorite below.
Also gxl version 0.03 is on the way and will be out sometime this month.
Um, that's all for now.
see you later.