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: We've already got a couple of themes similar to this, unfortunately, for the detail, your build seems quite plain and lacks a lot of detail, I suggest adding more to make it look more attractive.
Parkour difficulty/variety: You've barely got any variety with your parkour jumps, I mean you've got some ice and multi-colored wool but that's basically all the jumps on your map submission, personally I feel your map submission difficulty is a little too easy, try adding a little harder jumps, for example, chest/bed jumps, soul sand jumps, head jumps, etc.