Hello xpaintall,
I regret to inform you that your map is being rejected.
The theme is a bit unoriginal as we already have some alien-related maps, but not executed in this fashion.
The build is somewhat accurate to what you were going for; however, some of the structures are a bit flat, so make sure you add some more shape to them.
The parkour is varied throughout and flowed really nicely, well done there! However, try to refrain from having a lot of floating parkour (jumps that aren't attached to the main build) so it doesn't look as messy.
Thank you for submitting this map, I would love to see more submissions from you!