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: For the theme, unfortunately, it looks like the theme for your map submission is not original, we've already got a greek mythology type map called GreekTemple which looks very similar to your map submission sadly, for the detail it's alright But your map detail is very basic and doesn't really look attractive, unfortunately.
Parkour difficulty/variety: First thing I noticed when looking at the pictures was that you've got way too many floating blocks, if you're not sure what I mean by that I'm trying to say that it looks quite messy when you've got floating blocks in the air, a couple of blocks floating is fine but you've got certainly too many. For your parkour difficulty, I guess you could argue that it matches HARD difficulty but what I noticed quite a lot in your map submission is that your map doesn't really have good block variety in jumps, it looks basic and feels pretty repetitive when playing it. I suggest adding some more interesting type blocks like flower pot jumps, anvil jumps, cactus jumps, chest/enchantment table jumps, etc.
Good luck!