OK this art is incredible. Love the style, colors and the entire vibe. The level design is great but the given time for the levels is too tight and requires a no mistake playstyle (maybe that's what you were going for). I'd say for the first couple of levels you should try to give the player time to learn and make it a bit easier. Also there might be a bug at the end of the second level that crashes the game when player collides with the platform. But again incredible art style.