The THEME of your map is unoriginal as we already have many maps based around clouds/the sky. Before creating a map, be sure to check out the theme document for all maps accepted on the server here!
The BUILD of your map is a problem. There isn't a main build, it is just floating blocks. Next time try considering creating one main build with lots of depth and detail.
The PARKOUR fits the length and difficulty of a medium map, so good job on that! Your parkour is lacking variance, only things that are incorporated are regular jumps, ladders, and a slime. To add more variance, try adding more jumps with unique blocks like pots, water, heads, vines, etc.
Thank you for taking the time to create a map, I hope to see more submissions from you in the future.
If you have any questions feel free to reach out to me on discord at Elly#5555