this is very gold!! there so many mechanics and im excited even there is no h yet. I leave my suggestion not because you lack but maybe to help the developers if they need any opinion or thoughts.
1.Just keep it up this progress
2.Make many interactable npc and show each artstyle when we interact with them.
3.Make a character like free to go full nude option or something like that i think in the paid version you can?
4.Have like stats like we can increase charm for more friendly or each npc is required to inter act or they are more happy if you talk to them, Strength like required for like specific task or quest or any event or stronger in battle something like that or in sex if there have one, intellect,
i think that all for now i can think