Finished your game today and as someone who isn't fond of NTR (I'm super into SPH), the story was good enough that the NTR parts didn't faze me. Yes, the quality was so high, I decided to put my negative bias of NTR to the side so I can fully enjoy what you cooked.
The artstyle is very unique and although arguably minimalistic, enough expressions are still captured to convey enough emotion. It's also a nice break from all the 3D, super-realistic models.
There's a perfect balance of SPH. I love that everyone doesn't hold back their punches, but they're not so... monstrous about it. Monstrous might be a strong word, but given my experience, bad-written SPH can get unnecessarily dark. Like the scene where Fiona takes pictures of you? She could've easily gathered your neighbors and do some public humiliation, but it never went in that direction. The reactions are also diverse, so more brownie points for that.
If there's one thing I wish you can improve on, it's the treatment of the player. By no means am I suggesting that he reaps all of the rewards that the bull does or anything like that. He should receive the short end of the stick and be an inferior submissive. However, he deserves at least to be thrown a bone once in a while. It's mentioned that he never received a BJ, let alone had sex, and strongly implied that he's never received an HJ.
Feel free to disagree (politely please), but I believe it wouldn't make the themes of female domination and beta acceptance less impactful. In fact, I think throwing the player more bones later down the road would... A: make the other characters (i.e. Annie, Fiona, and Trey) more likeable, B: open up potential for the player to grow a bit too big for his britches, and C: make the sex scenes more unpredictable.
I am one person and you don't have to take my suggestion into consideration.