The gamedays can be found here (). They haven't been updated recently which is a bit worrisome, though. If you want additional testing ask a donator or an admin to upload the map to the server for you, then you can have a playtest on it.
Feedback based on pictures:
1) The aesthetic you've set up is a bit dreary and bland, not to mention populated with Half-life 2 textures, please change this.
2) There is a massive sightline down the bridge, and across the pools on the bottom. I would scale everything down by 25%-30%.
4) I don't really see the point of the colored brush pathways, especially on narrow paths.
here's 3) :3