Hello nodadforme,
Unfortunately, I will be
Rejecting your map.
The theme isn't original, as there are many nature/minecraft themed maps already. Please refer to the document linked in this thread -
https://manacube.com/threads/parkour-list-with-theme.20194/ to make sure your map idea is original.
The build isn't great, it is quite small and blocky. I understand it's difficult to add a lot of detail if you're building a minecraft based tree, but try to add some more shape and depth where you can.
The parkour has some variety which is good, but it does feel quite grouped. What I mean by this, is you would have a sequence of just normal jumps, then just fences etc. Try to mix up your jumps a bit more throughout the map.
Some parts seemed a bit confusing, I would suggest trying to add in a few more directional signs throughout the map, so people don't get lost.
The length and difficulty are good for a medium map.
Thanks for submitting your map! I hope to see more maps from you in the future.