I have playtested this map heres a review.
The build is nice, detailing is done well, wide variety of blocks is used, and aside from the heads obviously, looks like natural terrain, nothing out of the ordinary. But I am no expert on building...
As for the parkour, I think it fits medium difficulty nicely, it is speedrunnable and flows well. The last checkpoint is very creative, works well, and despite being timed does not feel too difficult for a Medium whatshowever, but I have a concern that it might work against your favour due to it not being very speedrunnable, I myself do not think this is an issue, but the judges might.
Lastly, I played the map like an absolute buffoon, trying to find every skip and advantage I could, which led to a few swag routes which were harder and slower than the intended route, this shouldn't be an issue, but I also came across one 1.20 skip that would be beneficial in speedrunning, so when one of the creators of this map is online you can reach out to me and I will show you.
Kind regards, Chimakivic