Cool game with a cinematic and everything! That was a nice touch. I like the art style and music, and I think you managed to hit that sweet spot between easy yet challenging puzzles. I went back to play the game again to try and find the crown, but no such luck. I do have a feeling where I need to go though, but didn't manage to find a way up there. Sadge.
The controls could use a bit more fine tuning, being a platformer and all. When moving against a wall there were times where I wasn't able to jump. Polishing and fine tuning aside, I think you did an overall good job! :)