Hey Lyswaen! Unfortunately, your map is being rejected. Here's why.
The theme is partially original; we do have maps centered around toxic waste (Radioactive), but none really like this. Good job on that end.
The build is the main problem; its plain and kinda unappealing. The map just feels like a box with intense lime-coloured sludge at the bottom of it. Whilst there is some detail in the form of the pipes, it isn't enough to make the build interesting. When you make a map, be sure to center it around an attractive build! Possibly add some details to fill up the space as well!
The parkour for the most part is ok, as it fits the difficulty well! Your parkour has some variance, but most of it is in clumps causing it to still be repetitive, especially with ladders. To add more variance, try adding more jumps with unique blocks like pots, water, heads, vines, etc.
Good luck in your future submissions! [Lofi]
If you have any questions feel free to reach out to me on discord at Elly#5555
Elly