This is a fun little puzzler! The slow and steady movement added to the overall mood of the game.
For polish, I would recommend adding some sounds or music! Even some ambient sound would improve the moood even more.
I didn't quite enjoy how long it took to light a torch. It felt like it should be instant, but maybe that's just part of the challenge.
Note: the itch.io page lists keyboard controls, but the in-game controls are for the gamepad. For example "Retry" and "Next Level"--"ESC/Backspace" didn't seem to do anything, and "Space" just restarted the level. maybe there is only a single level right now?