Hello Mr_Toasters,
Unfortunately, I will be
Rejecting your map.
The theme isn't original, as there are a lot of floating island/nature themed maps already. Please refer to the document in this thread -
https://manacube.com/threads/parkour-list-with-theme.20194/ to make sure your map idea is original.
The build is nice, it is simple, but it does have some nice details in the shaping of the islands, and the block variety, which is good.
The parkour is a bit repetitive. Try to experiment with a larger variety of blocks and items when creating parkour, as this will overall make your map more enjoyable to complete.
Despite the floating islands theme, you did do a good job at incorporating the parkour into the build, with minimal floating jumps, so well done!
The difficulty is good for an easy/medium map, and the length is good for a medium map.
Thanks for submitting your map! I hope to see more maps from you in the future.