I’m not an AI hater, I actually do AI art myself, and I have to say the arts are just not good enough. You need to bring sharper, cleaner images to the game. That determines the first impression people will have towards your game, not your writing or plot. For now these arts you have looks very blurry and low-res. I won’t even criticize your art style (but pls do try xl models like ponyxl if you can, I presume you’re still on sd1.5 based models, stop that they’re terrible now). Because the low-res images, especially the character sprites, is already unbearable for me. I can barely see the expressions on MC. The original resolution is probably something like 1280x720, and you scaled them further down to 800x600 as sprite, or stretch them to 1080p as cg, it just doesn’t work. You’d be better off making the cgs with koikatsu or something if you can’t get nice and sharp images. The background images are also bad, maybe just give up on pure t2i for these, you can find some photos or rendering and do i2i, more controllable, better quality.
The overall impression of MC sprite feels weird for a neet, also MC design looks boring to me, way too simple. But I kinda get it, it would be extremely hard to get complicated elements while maintaining consistency for the character if you’re using AI. Like the dragon girl missing her horn in sex scene. Speaking of consistency I guess you’re using inpaint on the whole image or just i2i to do differences in cg. It is slow and might break the consistency in some scene. The white flash when cumming did cover it but still… Try chopping the image and do them separately, you can draw something on it to hint the AI and get what you want, doesn’t really need any drawing skill.
Anyway that’s enough of my criticism. Those are actually common mutual problems in ai cg games, only a tiny few of them got this right by my standard. I’ve been think about making an ai cg VN for a while too, but never come up with any idea that can be expanded into a full game. And I’ll have a hard time trying to meet my goal too. So don’t feel too bad over my opinion, and don’t lose your motivation here, as you said you’re just beginning. I do admire your efforts, and I love the chibi variants of characters.