Hello A1exR_
Unfortunately, I will be Rejecting your map.
The theme is somewhat original, there are a lot of maps based around colors (Colors - Hard, Blue vs Orange - Hard, RedvBlue - Medium to name a few), but none exactly like this.
I do like the way you have used different blocks in the build, but it is hard to tell exactly what it's meant to be (I gather it's a red and black structure, based on the map name) In the future, I would recommend having one or two main builds that are relevant to your theme, with a bit more shape and depth, and then build jumps into that.
The parkour is varied. You used a nice variety of blocks and items, creating original and enjoyable jumps, so well done.
I find that it did feel a bit cluttered. The build is quite strenuous to look at, and having the jumps all floating inside of that, is a bit difficult to look at. In the future, try to incorporate the jumps into the build a bit more, as having an excessive number of jumps floating over the void can look a bit messy.
The difficulty feels a bit inconsistent, with some jumps being fine for a medium or hard map, while there were some more difficult jumps that would be better for an expert or insane, in the future, please try to keep the difficulty consistent throughout the map.
Thanks for submitting your map! I hope to see more maps from you in the future.