Heyo JumpR_OG05,
I'm sorry to say that your map has been rejected.
The THEME is unoriginal, we have quite a few nether themed maps.
The BUILD doesn't have a main build with parkour focused around it. Try to create a main build that you would put your parkour around as the floating parkour you have is not accepted anymore.
The PARKOUR has very little variation in the blocks used. Instead of using the same block, try using fences, water, cobblestone walls, flowerpots, minecarts, etc. !
Thank you for the submission, I hope to see more from you. Have a wonderful day ! [Mika]
-Ana