Nice job in completing your game it was actually quite fun moving around and making potions, Cheetah potion Gang.
I would say that keeping a consistent art style is important, and when making a platformer you want to avoid Visual Ambiguity so the player knows what they can and can not jump on.
overall though this was a nice proof of concept making potions to make a build for your character so that everyone can have a different approach is a great way to make games replayable!
Cheers, hope to see you next Game Jam.