That is a very nice overview image of the region. Sitting and staring at it I see lots of little things that I didn't know were there, and that I want to go have a look at
I was convinced that this was a mosaic until I looked up the specs for your CCD, ran them through my calculator, and threw the 2.5x2.5 degree field into Cartes Du Ciel. That is a very impressive frame size!
Regards,
Eric