First off, I absolutely LOVE this game. It is so well done. Honestly, this has the potential to really set itself apart from everything else in the space and really hit it big.
Here are some of my suggestions as you move forward in the development. It is obviously still your game so feel free to implement as you wish:
(1) I would add more to the list of kinks. I am not big into fart, and piss, or bloodplay (and I think they are less common kinks). I think there is a lot of room to add with just traditional BDSM (tying the MC up, spanking, riding crop, shoe smelling).
(2) Consequence of each fight. Sometimes when I play I feel like each individual fight isn't very important. Playing on Very Hard Difficulty, I get the sense that "there is no way I win this fight but I will level up and be better next time." I would suggest you add some mechanic that after each fight, the MC gets a little more mentally broken and can result in the ultimate defeat of the Queen's Conduit. I don't think this would be too penalizing since the game gives you plenty of chances to save your progress. It also seems like you alluded to that in the opening of the game... and maybe it is already a planned mechanic, idk. I think it would be interesting to see "submission" or something like that take over your soul and you lose the game if that becomes 100%.
(3) Lean into the kink. I really liked the fight with Brittany where you had to avoid the stomping of her heels. I think that was wonderful and would love to see more moves that need to be avoided along those lines.
(4) Interactive H-Scenes. First, I really appreciate that the game can be played with just one hand LOL. I think that when you lose a fight, it might be good to have H-Scenes that require you to take action. For example, moving the players lips if you are kissing her foot or tongue if you are worshipping her body. I would also like to see less sexual punishments sometimes if you lose. Your opponent might force you to give her a massage or paint her nails (and you might get punished if you fail to complete the task on time - even if you succeed maybe you will start the next fight with less energy).
(5) Implementing money. It seems like you had a stat for $ in the top right corner when I hit pause? I'm not sure if you plan to incorporate money or more items, but I think $$$ could play a role with the H-side as well. Maybe one of your opponent takes your money when you lose or you need $$$ to get out of a sticky situation.
Anyway, excellent game. Feel free to respond to none of this or parts of this. I hope you succeed and I hope to subscribe to your Patreon soon! Best of luck! Very fun game!