I love how the foreground elements look like cut paper/stickers, it's super cute!!
My main issue is that you can bypass the platforming entirely by just holding w and breaking the boundaries of the game. Being able to move up is helpful at times for when the jumps aren't high enough but it can be a bit disorienting. I definitely agree that the hit boxes and placement could be tweaked just a bit.
Other than that you guys did a great job!