Interesting little game. I like your interpretation of the theme. Nothing crazy there, but your influence is specific and it just gives the game a good feel like it's been made my someone passionate about what they're making.
I feel like both in terms of aesthetics and gameplay though, this could use some more love. The combat with the skeletons very quickly became a bit tedious, and the witch fight felt insane in comparison. And aesthetically, well, I actually quite like the character sprites (especially the witch, who looks a little goofy in a way that is quite charming), but the untextured platforms and weirdly blurry backgrounds feel very out of place and bring the whole aesthetic down to me.
I hope this doesn't sound too harsh; just trying to provide some feedback to take with you as you do more (either more work on this or work on something else).It definitely has a vibe like maybe time got the best of you, which is completely understandable. I do want to stress that what you've put together is still quite impressive for a game jam, and definitely has the potential to be something cool if you're interested in working with it a bit more. Good work!