I spared the bastard, I think Martha wants to fuck him. I like everything. Here are some suggestions.
Some kind of icons or symbols over all the interactable objects, pressing space does give you a list, I just think it could add some visual flair.
Animated overlays, bugs or spiders crawling past the screen occasionally, or similar stuff.
If you spare the bastard you should get something from him directly after the fight.
More ways to fuck around unnecessarily with dead bodies, perhaps some kind of usual option that will eventually with repeated use lead to something cool. Something like "unnecessarily poking of the body" or bring "bring a piece with you".
You probably know the rest, keep eating moss, moss magic.