From what I'm seeing, I really enjoy the floating cam. Also SotD seems to have very nice animation state transitions. And I really like the UI. You are right, it definitely is very good for inspiration.
I'm working on implementing a similar camera on my game now, and it really makes the sex scenes way more interesting :v
Again, I thought it would be very hard to code, but I found a plugin for floating cam controllers on the store.
Still need to solve some issues, but seems good so far :D
I'll keep you updated.