Hey zxma!
Unfortunately, I'm gonna have to
reject your map.
The theme is unoriginal, as we already have nether-themed maps. There isn't really a build, as most jumps are floating blocks. Next time you make a map, make sure you have a main build, as we no longer accept maps without one. You only used normal blocks for the parkour, next time try to add more variety in the parkour! You could take a look at some of the recently accepted maps for inspiration on how to do this. Your map is a bit too long and easy for the hard difficulty. Please take a look at
this thread for map requirements (and tips!).
Thank you for submitting this map, I'd love to see more maps from you!
Have a great day,
Sil