Ah, Vsevolod, that trash adds life to the empty street. Humans live here. Humans drop trash. I am an anthropologist photographer. Not a REAL anthropologist, but a photographer who seeks bits of human activity in a finished photo. And, no, I didn't see the trash when I snapped the photo. You are correct with regard to "purity" of the photo. I'll leave that to purists. Thanks for the comments.