I really like the art style and aesthetic in this game. Gives off chill vibes. A part that stood out to me was the parallax scrolling. This always looks great in games and you pulled it off really well. The game is challenging but not too hard which makes it nice to play.
The only things I would suggest, to improve it, would be firstly to change the characters colour or give him something that makes him stand out from the background. I'd also make the camera lock onto him when he's in the middle of the screen as, along with the change of colour, it would make him a lot easier to focus on instead of him being small and on the far left of the screen with the same colour scheme as the background. Other than that I really enjoyed this game.