The typical fine-art architectural photo is that ultra-long exposure with blackened skies, etc. That can be really gorgeous, but it's also an-oft repeated look. So, kudos to you for something fresh and different.

can you share an example of that other "ultra long exposure" approach. I wonder if I am familiar with it...
this was shot back in 2012 or even earlier when i was not doing hdrs and the shots were all hand held, so long exposure was not possible.










