Hope all is well with you!! I'm cheering you on :]
1. I don't mind NSFW, and I'm definitely curious about the plot-importance. Like others said, a fade-to-black for those who'd like to abstain would be neat, and maybe you could somehow include a short little blurb about the important stuff.
2. Somehow, I don't really imagine the MC with a body. They are a disembodied voice that only has limbs when mentioned lol.
3. Oh I would love to see creepy things in the game. Peace and love to Zu, but the lack of mouth and his general face has wonderful potential to be unsettling. Furthermore, I feel like the visuals would lend well to some creepy moments.
4. I think the font is really readable and matches the vibes of the game, I have not had any problems reading it. Although, I have to admit,,,,for a short bit I read your name as Anier instead of finier because of this font...oops! Luckily, I didn't make that mistake in the game because it is in all caps!