Hello skopped,
Unfortunately, I will be
Rejecting your map.
The theme isn't very original, considering there are a lot of maps centred around Minecraft blocks, nature, biomes etc. 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 isn't very good, considering it's just a stone wall. I would suggest trying to have a build that represents the theme, with more shape and detail. I do understand though with the nature of this theme it would be difficult
The parkour is very repetitive, as it is all normal blocks and ladders. Try to experiment with a larger variety of blocks and items when you build jumps, if you need examples, I would recommend getting inspiration from recently accepted maps. This will make your map overall more enjoyable to complete.
All the parkour is floating. Try to avoid having jumps floating over the void and around the build where possible. This can make the map look quite messy.
The length and difficulty are good for an easy map.
Thanks for submitting your map! I hope to see more maps from you in the future.