Hello Tiglo,
I regret to inform you that your map is being rejected.
As said above, the theme is unoriginal as we already have a few maps with this exact theme (Rubik, RubiksCube.)
The build is accurate to the original thing, so good job on that! I can also tell that you put a lot of effort into this build.
The parkour is a bit repetitive with the use of ladder jumps, fences, and straightforward jumps. I recommend incorporating different jump styles throughout the entire map. You can look at recently accepted maps for some examples of these. The length of the parkour was good for the difficulty, but the jumps themselves were more suited for the medium difficulty. Try making some of the jumps harder, and more unique.
Thank you for submitting your map, I would love to see more submissions from you!
Have a nice day,
Kristina