I must say this map looks interesting, unfortunately, there are missing textures, maybe the ones from mapmedia coming with Radiant. You should check default game paks content before you start making such maps and if you like to use textures that are installed by Radiant as mapmedia content, you should always port these textures with the map in its original dirs, if the texture should be shader, include also that...
BTW, fixing the missing textures, this map would look outstanding in QL :)