Hey Gamers, sorry to tell you your map has been rejected.
The parkour is good, it's a good length for an Easy map and the parkour is fun. The main problem is the build and the theme though, the build is not good, it's just a big box. Remember that with your other maps the build (in particular the outside) is just as important as the other features to your map. The theme is really unoriginal, there are already a lot of maps that are a lot like yours (SeaTemple, UnderwaterPK, Prismarine).
Thanks for submitting, I'd love to see more maps from you!