This is a good shot, and it is almost perfect. I feel you should use ISO 800 to reduce the noise a little and try a -1ev exposure to prevent the overexposed stained glass. The photo can then have the levels readjusted to lighten the dark areas. IMHO.
Ah a Russian Orthodox church!
I can read the name of the couple who probably offered the stained glass window.
Gregory and Mary Tcherkavsky...
I wonder who they are or who they were...
I like the reflection on the left more than all!
Another good crop, all vertical...
Marisa
