The rest of the story...
...of the photograph and the painting of fireworks.
A couple of people were able to identify the painting. The artist was the same man who did Arrangement in Grey and Black: Portrait of the Painter's Mother.
The painting in question (see the entries for March 11 and 12) was Nocturne in Black and Gold, the Falling Rocket. The artist's name: James Abbott McNeill Whistler.
Speaking of things grey and black, still in the works is a look at how digital technology provides a most versatile and effective way of converting a color photograph to an arrangement of white, greys and black--in other words, a black and white photograph.