I enjoyed the game! It was super cute, and from an art perspective, looked polished!
The game play was interesting, but I felt like I was being punished for exploration and trying new things, specifically in regards to using wax to unlock stuff. The wax supply (at least from what I found) was limited, but there were plenty of doors to unlock. There wasn't enough wax to unlock doors, and with mechanics like the hot metal that can degrade wax reserves, exploration felt punished.
Admittedly, it was somewhat frustrating to complete the platforming area, only to realize I didn't have enough wax to go through and all wax on the map was depleted, so I soft-locked myself there, which shouldn't be possible. I'm not sure what a proper workaround for this would be--maybe just a cooldown on burning doors down? I don't feel like something essential to progression should be a limited resource.
Otherwise, I thought it was fun!