Looks alright so far, but I hope there'll be more character variety in the future. Seems like "Teen w/big tits" and "Milf w/massive tits" is the going theme so far.
Also I'd probably put a bit more effort into the little details of the renders. A lot of the screens show the characters staring off into space. I'd advice giving them something to focus on - be that the camera, the off-screen MC, or whatever ya come up with. It's especially noticeable in still frames so you've got a choice: Animation(with moving titties distracting the viewers) or improving the pose of the still images.
Wish it wasn't on RPG MV(RPG anything for that matter...) because it's a pain in the ass managing those save files, but other than that it seems to be a pretty solid game, I wish you luck in this over-saturated market.