it is nice to see a vote on top of a post, so i have voted and I will leave feedback on it since you seem very serious about accepting feedback which is a big positive in my book
And based on this initial positive vibe I get I will try out the game too later
My choices was gameplay and then art in this order, and the reason is the following:
You need to have a fun and engaging core gemeplay loop, if your gameplay loop fails, your art can be godly not many people will feel like engaging with the game in my opinion.
There are many h-titles that i straight up ignore, even thou they have really great art (for example those that uses a Fire Emblem like fight system where tactical fights take ages and you have no h-content for a long time)
But games like Tresures of Nadia or Karryn's Prison have relatively good core gameplay loops and the pacing in which you unlock new scenes and systems, that keeps the game and core gameplay fresh
Fetishes doesn't matter much in my opinion...have too few: you are limiting the audience that might be interested , have too many: it is too broad and you might need to work in extra options to hide certain fetishes which is extra work
like I really like muscle girls like in the game Deathblight :Operation Thunderfang but I don't expect every game to have them, especially because it is a nieche, and that game was abandoned to give you an example
I will try your game out and will leave any positive feedback i can give after playing, cheers and gl with the project
Also, If I can give you one advice beforehand, do not feature bloat your game.. I know how aspiring indie devs can be with new subsystems and new ideas, but it needs to have an endgoal in sight..a lot of indie devs fall into the trap of feature bloating their own game and never finishing it as a result