This was a really fun little puzzle platformer! Really well done, especially for your second game! :D I also liked the art and the moody shadows a lot. I think you used the lantern theme very well here. The extra collectable lantern were also nice and satisfying to find :)
I already liked the platforming, but if you wanted to make it feel even better there are a lot of little tricks you could do. If you are interested you could look up things like Coyote time or variable jump height :)
But that is just a little tip. Really solid submission! I enjoyed this :D