I love the atmosphere and art in this game, and I think the music works pretty well (although a little repetitive as it goes on). The story was a bit opaque, which works to a point, but I ultimately got stuck after getting into the staff room and couldn't really figure out what to do (nor was I ever entirely clear what my aim was). Overall, I still enjoyed this, and it's particularly impressive as a first game!
I made a video with my first 15-minute impressions of it, should you want more commentary:
https://youtu.be/4SNBb_Q1xhU?t=3010