i dont think it was missing anything.
you could add more niche fetishes in future game maybe depending on the setting.
if you do more stuff with magic or scifi exists maybe get more weird with it "inanimate tf , more macro/micro , slimegirls etc"
having more mid game bad ends.
a wholesome romantic route is always nice, sometimes its nice to see a girl winning lol like if you could have saved the girl in the wall.
genuinely i think the game was great and whatever you do next will be just as good aslong as you make it to your tastes xx <3