Hello Jonathan1012,
Unfortunately, I will be Rejecting your map.
The theme is original, there are a few maps that are based on two different sides, but none that are based around this concept entirely. There isn't really a main build to it, I know it's difficult to build something that is relevant to this theme, but try to pick a theme with one or two main bigger builds, then incorporate the parkour into that, having an excessive number of jumps floating around the build and void can make your map look a bit messy.
You did have some different jump styles which is good, it did feel quite grouped though. What I mean by this, is you would have a sequence of just normal block jumps, then just ladders, then fences etc. Try to mix up your jumps a bit more throughout the map and experiment with how you utilize different blocks and items, to create more original and enjoyable jumps.
The length is good for a medium map and the difficulty is good for an easy/medium map.
Thanks for submitting your map! I hope to see more maps from you in the future.