I liked the sky from this day's shoot, but my "basilica" shots
were terribly soft. Went to reshoot, but the lovely sky had
disappeared. So . . . I blew the out the sky and blended the sky
from my first day of shooting.
Then . . . I toned down the saturation of the blue sky, and
processed it into a b/w shot, using Fred Miranda's B/W Workflow
plugin, with a blue filter.