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, let's get right into your parkour map submission review!
Originality ~ I mean I haven't seen any parkour submissions like this before but it sadly isn't that creative from my opinion and if you put thought into it you could have made an excellent theme.
Jump variety ~ Sadly your parkour submission hasn't really got that much jump variety and that's one of the most essentials things necessary in a parkour submission, for example, adding, soul sand jumps, bed/chest jumps, slime block jumps, enchantment table/head jumps would make a parkour map much more interesting!
Difficulty ~ For an easy map 30 jumps is probably the most minimum and the parkour is quite easy In my opinion, possibly adding more jumps and maybe a tricky one would be a cool idea, just my personal opinion, nonetheless good luck! ;)