The game looks pretty nice, bright and cheery. A couple of bugs here and there like jumping on the slimes puts you in the falling animation while you're on top of them. Also it's pretty unclear when you change locations since the background just flashes to the different one, for some of them I wasn't sure when I had moved since it happened so suddenly. Looks like you have your systems set up and will improve with more time and polish.
One more thing, I hate the leap of faith trope in platform games lol