Ughhhh the jumpscares. You did a great job in making me afraid of getting caught, the sound and animation go a long way in making me jump out of my seat when I lose. Your visuals hit the right balance in creating a creepy atmosphere, and the mechanics that are here are solid and feel good to play.
I think it's a little hard to feel like I have agency in avoiding the basement monster however since the clue I'm given is "try to not make any noise" but I have no way to crouch, hide, or turn the flashlight off. I don't believe that I'm hidden from it when I'm standing up and shining a light at the thing, so it becomes kind of a game of trying to kite the enemy AI into not getting me. Your scares are definitely effective, but I don't know if they feel earned for this reason. Still, I had a great time playing it!