(Borked in the viewer, so thanks for the pics)
Dang, pretty cool. We don't see a whole lot of Dwarven architecture here, unfortunately, and I'm always a fan of racial buildings.
That being said, while the model viewer pic looks pretty great, the in-game (probably due to lighting & such) really strike me as a little un-Warcrafty. Like, just a tiny bit complex or weird for Warcraft, next to, say, the Barracks or Workshop. I wish I had a more concrete critique, or any suggestions... Aside from providing a form that uses all in-game textures (I'm sure it's feasible for a model of this nature), as the General said.
Either way, thanks! Good luck.