Interesting platformer, with some parts that almost feel like a Metroidvania. Really nice game!
My only feedback would be to work a bit more on the visuals. In many parts it looks really good, but with some sprites you can tell that something feels a little off. My advice would be to stick to a consistent color palette and establish some clear pixel art standards to make everything feel more cohesive.
If you have some time, feel free to check out my game too and give me some feedback! :)