Previews look great, models are original and we have an interesting plot. Will try this in a few months.
Just a few suggestions-
1. Please don't add NTR, or make it optional.
2. Don't add grinding of any sort, if you do, make it easy, intuitive and rewarding.
3. Avoid adopting a sandbox/point-to-click system (or atleast make it easy to navigate/add hints/walkthrough)
4. Don't have a convoluted inventory system.
5. If you are making branching paths, make 2-3, no more than that, that will ensure frequent, meaty and significant updates.
6. Add a taboo patch on F95 (if your game allows it) optional obviously.
7. Harem, also optional, is always welcome.
8. Add as many optional kinks as you deem fit.
9. Find a good mix between story and sex, some games get lost in their own lore and characters, that they forget it's an Adult Visual Novel.
10. Stick to your artistic vision, but it's good to listen to your supporters/fans. Give people what they want, and they'll want more.
11. Keep your Patreon Supporters persistently updated, and have frequent updates to your game (however small they maybe).
These are some suggestions from an avid Adult VN player. Many popular/successful games follow these steps, and these will help you find success and fandom among the broadest audience. I only mention these, because I like the premise of your game, and I want to see you succeed. Too many good games get abandoned.
Best of luck to you
MackBook!