So evil! Seriously, one of the most horrible inventions of all time. But it looks nice, as a start. Remember, some models can get up to 3000 polys (Like some rocks and the piano from cp_mann_manor). Maybe make a closed version of it, too.
I've waited and haven't seen this go on the EU server... So I didn't get to play it with company yet, hope to see how the models, and the map progress. From what I can see now - it looks great!
Keep up the great work!