I think that you could improve the leveldesign. Something like different trees and grass would improve the look of your game.
Feel free to check out my game aswell :)
https://itch.io/jam/brackeys-3/rate/574160
Thanks Polygon! Yes great idea. We had only the 7 days to code and implement all the mechanics and design. We are already starting on better world design/layout and more trees/grass and paths! Thanks for your feedback!