Hey there, before going ahead with your map submission review I'd like to inform you that I'm only giving you my personal opinion/feedback on your parkour map submission and my personal feedback will certainly not affect your parkour map submission in the slightest, I recommend that you take in my feedback to improve your submission if there are any flaws, you don't need to and you're free to ignore me but anyhow, before going ahead I'd like to mention that I'm a Moderator not a Map Judge so this is just my personal opinion and I am not accepting or denying your parkour map as this is only my personal opinion.
Parkour theme/detail: Hey there, not sure exactly what type of theme this is but unfortunately In my opinion it looks unoriginal, we've already got plenty of parkour maps with floating islands, etc so this theme doesn't really look that original. For the detail you did an alright job, it's not bad but it's very basic in my opinion, I suggest at least adding some more detail to your map submission.
Parkour difficulty/variety: Your parkour map I guess fit's into the area MEDIUM/EASY in my opinion, your parkour is kind of messy and I got lost a handful of times while trying out your parkour map submission, you've got pretty basic parkour variety unfortunately and it felt quite boring and repetitive, I suggest adding more interesting jumps like chest/enchantment table jumps. cactus jumps or flower pot jumps!
Good luck :D