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.
Originality ~ Sadly I've already seen a handful of parkour map submissions with this similar type of them, desert/palace or pyramid style, in my opinion, it isn't a very creative parkour submission, unfortunately.
Details ~ I definitely do believe that you could have added more detail to your overall parkour build, it's a decent build but definitely seems that it's a little overdone and some areas certainly could have gotten some more small simple details to make it more attractive, for example, a few different types of blocks to make the build stand out more, possibly some palm trees, just my opinion.
Parkour Variety ~ This is one of the most important sections of a parkour submission and sadly your parkour submission doesn't really have that much variety with the jumps, you've got some fence and ladder jumps occasionally added through your build but it certainly would be better if you added more variety, for example, bed jumps, slime block jumps, head-hitters, soul sand jumps, enchantment table/chest jumps, etc.
Difficulty ~ The number of jumps certainly does seem in the EXPERT section for a parkour submission and as Quinny mentioned there's not many floating jumps which are great to see but it's always better if you keep your parkour more attached to the build so it doesn't look messy, I've learned from previous experience that floating blocks look a little messy.
Good luck!