OMG, it looks so real! Unbelievable! The only point where you can see that it's 3d, is on the roof of the entrance and the arc over the windows. There you can see the polygons. If that where build with more segments, I would not belive, that's a 3d scene! Stunning! Instant fav!
Nice! But a bit too lowpoly. You really should put some subdivs on that plasterwork. Actually, It's best to use subdivs everywhere possible. Because there is no sharp 90 degrees edges in real world. It's always a bit smoothed. The best possible way is a touch of zbrushing, I think. Beause there not only chamfers everywhere, but also dents and uneven edges and all those little details.