There are six major Catholic churches in the Old Upper Town of Zagreb, and Sunday morning finds its ancient narrow streets crowded with worshippers. I saw this group of four nuns moving towards me from a side street. Three of them were bunched together in front, with one trailing behind. Using a telephoto lens zoomed out to about 150mm, I had time for one shot. I recall that church bells were pealing at that moment, and as the group stepped out of the shadows into the bright sun, the trailing nun raised her head slightly. I was able to make this photo, which offers a good example of how posture and expression and placement of groups of people in street situations can express ideas. They walk casually and easily – three silver crosses and four white scarves punctuate the dark clothing and shadowy background. The trailing nun’s expression speaks of enthusiasm and joy, even though she may be bringing up the rear.