I'm late on this one, but I finally got around to playing it and I just love it! Of course whenever I see a map that isn't the conventional Quake theme of castle or base gets my attention. (Not that that's a bad thing) You did a stellar job of creating a farmhouse, at least that's what I think it is. Everything looks good from the decrepit interiors and the windows letting you see the inside, to the vegetation outside. My only suggestion would have been to make the spinning part of the windmill more visible to the player throughout the map, as I think it makes an excellent set piece.
As far as gameplay, it wasn't too bad on hard skill. Almost died at the end but I always have trouble with those gugs.
I think you did an excellent job with this one, certainly well enough to be fully released.
First run demo, hard skill:
http://www.quaketastic.com/files/demos/orl_digs09.rar