Spooky and atmospheric. I loved the aesthetics, storytelling, and music (Chopin slapped).
Lots of cool references although becoming derivative.

Regarding the gameplay, sometimes I got a bit bored of the loop of picking a literal key to a door to get another key for another door, but many of the puzzles were fun.
I would balance the inventory space to have like 2+ slots or ignore equipped items / separate space for key items. Then it would have been fun to use the in-game camera more.

Also would have loved a Radio quick toggle button to blast Swan Lake on and off at will for dramatic effect.