Thanks a lot, I think overall that was some really great feedback!
Interestingly, I paused the video to think about low-effort landmarks and different coloured lamps came to mind. Then in the next sentence you suggested just that. So I'll definitely try to add them with the next update.
Due to the game's nature as a small university project, I likely won't ever polish it enough to get rid of the deeper flaws or add a ton of lore. But with a few tweaks, I hope it might become more enjoyable for the player in the future.