Hello picanu,
Unfortunately, I will be Rejecting your map.
The theme isn't original, as there is a sonic map already (Sonic - Medium) this map is a bit different though which is good.
The build is mainly pixel art, which unfortunately is no longer accepted. Try to make your build more 3d with shape and depth.
The parkour has some variety which is good, but it does feel a bit repetitive. Try to mix up your jumps more throughout the map as well as experimenting with different ways you utilize blocks and items, as this will make your map more fun to complete.
The difficulty is good for an easy map but the length is too long.
Thanks for submitting your map! I hope to see more maps from you in the future.