I've finished all the content so far, and I'm quite pleased. Setting aside compliments about the game as a whole, what really caught my attention was the excellent progression of mind control. It gives a great feeling with every detail change you make.
Also, I like how both AVA and the protagonist are selfish and even malicious without feeling remorse or guilt. In the end, the protagonist is like a "villain," but it doesn't matter; you want him to win.
Now, here are my recommendations: first, regarding the animated scenes, I'd like them to have dialogues as well. I mean, that would really improve the scenes. There could also be some dialogue variations for the same scenes.
Second, it would be interesting to have more interactions with the slaves in the story. They could have mini events at home or in a future house that houses them all, or just the favorites.
They could even help during the main story, with small details making them different from what they used to seem like mere dolls to "real" characters in the game. For example, scenes of them reading books to bring you more knowledge, scenes of them talking to each other to find ways to serve us better, that kind of thing, so they don't seem like still dolls, haha.
Lastly, it would be cool for each character to have their own obsession in the future, let's say Sarah with Daddy thing, Sofia with anal, Chole addicted to eating cum or a boobjob, this kind of thing could even be a different form of evolution, the point is to diversify.
That's it, I loved the game and of course these are just thoughts I had, the team may have already thought of much better things than that and I trust you, good luck with the game