Hm, you're the first who says that and I really love them. To each their own I guess. :) They are from Tremulous btw.
There's no download for that map atm and it'll take me some more days till a pak is ready. Only the room on that screenie is (halfway) ready. The rest of the map has like three textures and is pitch black atm.
Hm, to that point, we really do want to select higher-res textures than Q3 sets, Spirit. Might I suggest QRP, any custom Q4 sets, or some of the Free ones used in Sauerbraten?