Skybox is purple death for me, as a result the lighting was pretty dark.
Jumps seem fine for a mid tier demo map although two feel like they are out of order of difficulty:
jump (5?), where you go down 2 plats then across a small gap with water. The low roof makes this a bit tricky for an early jump, and then the next jump is just a double + strafe so it seems a little weird.
jump (??) after the jump where you fall down hole and catch at the bottom. Don't know if its the spacing or probably just cause I'm shit but this was the hardest jump of the map for me, compared to last which I could simply double prefire and wallcatch.