Follow-up.
The buyer had mentioned that she wanted another piece the same size and would take a look at the rest of my France gallery. I replied that should she find something in color but want a black and white conversion, I would be happy to do that for her consideration. She did, I did, I let her know, she bought :)
I was worried that she would be disappointed by a "pairing" of the two, so I pointed out that both the scale and the textures of the two images are quite different. When she bought the second piece, she said that the pieces would be part of a large grouping that will include pieces of various sizes, both photographic and non-photographic and that they would not be hung side by side. So I feel certain that this will work for her and that she will be as pleased as I am :)
eta Oh, and I just realized I have just broken into the elite "sold one the day of upload" circle :)
uhhhh . . . . does this count?