This game has a great vibe, the art, music, and gameplay go together great and the game is really polished. I love the visuals of the strong shadows, and the strong blocks of color remind me of Alto's adventure. The only thing I would say is that the camera does seem to move too much/follow the player too closely, but that's also definitely subjective.
This is a strong classic platformer, with well-designed levels that teach the mechanics and ramp up in difficulty well as you go on. I admire the polish on this submission. It feels like you set an appropriate scope for the game and fleshed it out completely, and I definitely admire that skill! Everything here is very polished, great work!