As tas said, the theme is somewhat unoriginal but still works, however, I'm not a fan of this build as it feels very flat and poorly designed, the enviroment around works but the structure should have more details on the outside. And please do something about the empty inside. It just doesn't look good.
The parkour got some variety and a nice flow, which is good, and difficulty is good too but it is a little short for medium, there is also a huge cheat