Very detailed reply, thank you. I think that in the future I'll split the game into several shorter levels. It will help with bad map spawns (since the maps will be smaller) and allow me to split up the puzzles and enemy types based on difficulty. The hostile girls are probably not going to be wandering around either. I had a whole boss arena thing planned for them, but ran out of time. I think that I'll add a piece of AI for the girls you bring back that makes the one that hasn't had sex with Liam yet to be the one to go after him. Maybe there will be a final objective that appears on the map after you collect all the girls so you can watch the scenes at your leisure, or just a button you press to finish the game.
I'll definitely add screen overlays for inputs showing what the knight is trying to do. Just something to flash on screen while the mouse button is down. Map pings for movement, arrows for aiming, circle showing the grab range for picking stuff up.