Hello Altug_
Unfortunately I will be Rejecting your map.
The theme isn't original as there are already maps that are centered around specific blocks, also with that there isn't a main build in your map, in the future, pick a theme that has a main build incorporated with it, so you have a main build then build the jumps into that build, rather than just having jumps floating above the void.
The parkour is quite repetitive, mainly consisting of glass blocks, slime blocks & ladders. I would suggest experimenting with a wider variety of blocks and items when creating jumps to make the map more interesting and overall more enjoyable to complete.
The length is good for a hard map, but the parkour would probably be around a medium difficulty.
Thanks for submitting your map! I hope to see more maps from you in the future.