Cool shot. It looks like it's coming alive. Don't know if you knew this or not. But, you can add your technical data to the Notes section if you just click on edit icon to the right side of this page while logged on.
Shot just before 10pm with Nikon D90 and 50mm f/1.8 D at f6.3, ISO 200 on a tripod. Merged six exposures in Photomatrix Pro (1/4 sec – 2 EV, 1 sec, 4 sec, 4 sec + 2 EV, 10 sec, 15 sec + 2EV) and post processed in Gimp.
http://strongblackcoffee.net/2010/11/friedrichswerdersche-kirche-hdr/