Here is another image from the 70's in a Paris subway.  I took this B&W photo as I was walking past the accordion man, which is why it is blurred, and several years later, I made a print and took it to Kinko's and had a color copy made, even though it is B&W, so that I could do a color copy transfer onto watercolor paper. The transfer turned out pretty rough, which is what I wanted, and then I made a color version by painting on top with oils and pastels.
I've been doing more B&W work lately, and now this image has found it's way back to B&W. I'm finding that I have quite a few interesting people shots from my travels, so more will be coming.