Hoi rmc22,
Sorry to tell you that your map have been rejected.
The theme is not really original, because there is already a Minecraft fish themed map, the build is not good, you made a pixel art, but pixel art are not allowed alone anymore. There is also a lot of floating jumps in your map, be careful ! The parkour could be better, it's varied, but a bit repetitive, and way too hard for an easy.
Thanks for submitting your map, would be really good to see more maps from you !