The presentation is great. I really liked the main menu, and the end screen, they both looked very professional. During gameplay, the 2D and 3D assets were clashing & felt a bit jarring. The witch could have been a 2D asset for example, since the player can only see her from behind. But besides that, the visuals don't feel unified. A more restricted color palette could help with that.
I also enjoyed the voice lines & music. Since the witch's lines are so frequent, they repeat several times across the 4 levels. If they were less frequent (to allow for less repetition) then they would seem more intentional.
Finally, I think it's a real feat that so many people coordinated to make a jam game. Congratulations & good work!