Courthouse after dark (3/3)

This is probably the best image of the night. 90 seconds with a blue 47b filter at f2.8, then desaturated. Low moving clouds, lit by the moon, give an aurora borealis effect in the sky.

 

Reference color image:

www.flickr.com/photos/7726011@N07/2278851091/

 

Representative 47b blue filtered image:

www.flickr.com/photos/7726011@N07/2278851387/

Done