The pixel art is very blurry. To fix this, go to project -> project settings -> rendering -> textures, and set Default Texture Filter to Nearest. The art would look much, much better trust me. Also, I think the player controller could use a lot of work. It feels very floaty, slow, and unresponsive. Finally, you should explain in game that you can jump mid-air, which took me 5 minutes to figure out (because the platforming is very hard without that knowledge). I liked the shop though!