Whilst I know already this is just a demo, I'd really fancy to see more content added such as: creampies, anal and other positions, you know, the typical stuff. Besides that, I don't know if it would be possible, but I'd love to have a better camerawork (in other words, IK we have several angles with which to view the H-scenes, but I still found them a bit awkward, I wish we could see better what's happening by having a "distance" feature, so you can see the animation more closely or farther away).
Other than that, I wish you luck mate, I'm looking forward to this project of yours.
Edit: finally, I take it you got inspired by "Shimoneta", such a funny anime, but a shame it didn't get a 2nd season...