So let's start with pros:
Character design; you've got a diverse (not that way liberals, I mean nobody looks 'samey'), quirky cast. If I see even one character from this game somewhere else I can instantly identify where it came from, that's not easy to do with the lower-end rendering programs so props to you! Also to use corporate-speak, brand recognition is important.
Content boldness (?); You aren't afraid to put in extreme kinks. Hey it may not be for everyone and that's okay, today's H-game market is awash in generic appeal, but don't forget the people who's interests aren't piqued by the mundane are still around.
Flexibility in mechanics; While it may not be fully implemented yet, I'm quite happy to see a set quest system for making 'money' at the milkmaids guild, I hate RNG with a passion so the harlots guild wasn't really for me but you've got your bases covered instead of pigeon-holing the player.
Now the cons:
Content presentation; As someone previously stated, I'd far rather see depictions of the scenes be both characters interacting with each other, with the pov shots supplementing them. Granted, I imagine since you're making this for practice and learning the scenes aren't your focus unless you're practicing rendering.
Economy; Sorry, but if I think for too long about why the MC can't just fill condoms herself it bugs me. Not unforgivable but yeah.
Lack of Warning; Honestly none of the content bothers me much, but it's pretty important to let people know what they're getting into when you do plan on including stuff outside of the vanilla range. Plus it keeps people from coming in, finding there's a bunch of stuff they don't like and whining "muh eyeeeeeeeees bleaaaaaaaach' XD
Finally I'd like to propose you post this on other sites. There's nothing wrong with f95zone as a forum but it's huge, generalized, and full of well... I think you'd find a lot more interest at some of the smaller niche sites, which tend to be more accepting of content outside the norm. futanaripalace for example, while rather low in number of users and activity is pretty much custom-made for interest in a game literally full of futanari. (lol, pretty good chance you're from there and I just don't know because I haven't logged in in forever.)