This could be a full game! Great art/environment/effects, great concept, lots of great puzzles. I like the nod towards the theme, and appreciated how the early puzzles helped me understand the controls.
For me, the difficulty ramped up a bit too fast. Going straight from earning the dash into the spike room was a bit too much. I'm confident I could get it with practice, but needing to restart from the statue got a bit stressful after several attempts. Gave me Hollow Knight "White Palace" vibes, which really speaks volumes about how much potential is here! I hope you post a playthrough on so I can experience the entire game.