Hey Blue and HeroicHeaven :)
I think I would give this a +0.5. The theme itself I worry about, because Tardis exists...which is the same build but blue pretty much. So I worry about the originality of this theme for that reason, even though the Tardis is from Doctor Who, and this is a generic phone box. It is otherwise well built and accurately represents the theme, so well done~
As far as the parkour, I confess I was a bit confused about the start, not realizing you possibly intended a launch pad to start the map? Even so, jump pads aren't able to be added to maps currently. I would suggest revising the beginning of the parkour to be accessible without the jump pad, or remove it altogether.
I also thought that the first slime was a bit tough for a Medium map (the one split by the fence), so I would recommend nerfing that. Currently the difficulty of medium maps an be a bit vague because the spectrum of jumps is so broad, but I think that jump may be too tough anyway!
Please note that I am not a map judge! I just like to give feedback on map submissions to help improve the skills of those in the community :) Good luck on your map submission!