Hello,
Sadly your map is being REJECTED.
The theme is unoriginal as we already have many sky/biome maps.
The build of your map is all floating islands which does make the map look messy. Try having one main island with one main build so that you can add detail and depth based around it.
The parkour fits the length and difficulty of an easy map, so good job on that! Sadly the parkour is very repetitive as there is no variation. To add more variation, use blocks such as water, slimes, glass panes, fences, heads, trapdoors etc so you can spread out your variation and make the parkour more enjoyable.
We hope to see more map submissions from you in the future!
Have a wonderful day c;