I loved the art and little lore you got there. It was well presented. I love the way you put the game together. SFX and BGM were a bit loud but I loved how BGM was giving a good setting.
Also, I can say that I could see there is a room for upgrading 2D controlling for platformers. I wasn't comfortable while playing. I am not good at it either so I can not actually give you a proper advise. Maybe you didn't have time to upgrade it tho pardon me if i am mistaken.
If you are interested reach me out I can give you an interesting gith hub for a good open source 2D controller!