Hello Sefib,
I regret to inform you that your map is being rejected.
As mentioned previously, your map does need to have a proper theme that you can build the main build and parkour off of.
The build is quite messy, and as also mentioned previously, floating islands are an unoriginal build concept and typically maps that are based around floating islands are no longer accepted.
The parkour is somewhat varied throughout, but it does get repetitive within each section, so try to incorporate different jump styles throughout your entire map! The parkour is also floating quite a bit throughout (meaning it isn't attached to the main build) which makes it appear messy. The difficulty of the parkour matches the medium difficulty; however, the length is better suited for a hard map.
Thank you for submitting your map, I would love to see more submissions from you!
Have a nice day,
Kristina