Hello Sourblock,
Unfortunately, I will be
Rejecting your map.
The theme isn't original, as there are many cave related maps already. I would recommend checking 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 bad, it's accurate to the theme.
The parkour has some variety which is good, but it does feel a bit repetitive at times, try to keep up the variation throughout the map, as well as experimenting with different blocks and items, as this will make your map more fun to complete.
Some parts especially in the middle of the map felt very confusing, try to make the path of the parkour clearer, as well as adding in some more directional signs.
The difficulty is good for a medium map and the length is good for an expert.
Thanks for submitting your map! I hope to see more maps from you in the future.