@Arsians_com
I've finally had time to watch some of the test scenes.
Scale-wise, I'm finding that at default 1.00x zoom in DeoVR (on Quest 3) everything look a little bit undersized. I'm finding a 1.10x or 1.25x zoom is a better match. I don't mind it too much, it's far less jarring than having an elephant-scale model tower over you.
Definitely found the ghost hands distracting - especially for the moneyshot. Of course you already know to address this, but I wanted to confirm after watching your actual vid.
Two major thoughts:
Since your editing/greenscreen keys out everything flat, it's difficult to know what body position/angle to match with (e.g. lying down and eyes to the horizon, seated and head tilted down, etc.) This is unlike SLR PT videos that show the male actor posture and room edges/corners when PT is disabled. You don't need to copy SLR PT, but it could be helpful to have info (maybe an icon?) showing what posture the scene was shot in. Maybe show it briefly after the title card, or even in the video thumbnail?
Also, it's really difficult to anticipate the climax (which as a viewer, I always want to match). This is partly from lacking body language cues from the male due to PT, and the inexperienced female model who won't prompt/command the cumshot (which I fully understand is the premise of your series). Personally, I would appreciate some sort of signal that the cumshot is near. (Just throwing it out there: a 30sec countdown timer tucked away on the ceiling or somewhere hidden?)