Hello oEmqrald,
Unfortunately, I will be Rejecting your map.
The theme is original, there are some maps that have a similar idea, but none exactly like this.
The build isn't bad, but it's hard to tell exactly what it is - unless you knew the theme. For the abandoned theme I would probably suggest making some sort of bigger structure, then incorporating the jumps into that, rather than having the jumps follow an abandoned style path.
The parkour is varied, some parts felt a bit repetitive, but for the most part you made enjoyable jumps, and used the build and surrounding areas well to create these jumps.
The parkour is too hard for a medium map, some of the jumps are fine, but a lot of them would be better for a hard map. The length is good for a medium map.
Thanks for submitting your map! I hope to see more maps from you in the future