Hello Kieken_,
Unfortunately, I will be Rejecting your map.
The theme isn't that original, there aren't maps exactly like it, but there are many with a similar theme.
The build isn't very good. It is quite plain, I would suggest having a bigger main build, with the parkour implemented into it, rather than having a couple small builds on islands.
The parkour doesn't have much variety, as most of the jumps are normal blocks. I would recommend experimenting with a larger variety of blocks and items when building jumps, it will make your map overall more enjoyable to complete.
There are a lot of floating jumps, considering the build goes between a couple small islands. Please try to avoid having too many floating jumps in the future, as this can make the map look a bit 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.