This is the full group of current tonalist paintings. They are done in black and white, then sepia colors are glazed over them in different areas and at different amounts.
At the time that impressionism was first imagined, photography was invented. A mechanical representation of reality in black and white photos was the only image for over 100 years, until color photography came about. To people a black and white painting automatically implies historical themes because of that era of black and white.
By doing an impressionistic painting in sepia colors, the image becomes a painting about historical images. It seems to become a painting about historical photos. A painting that only gives the impression of photo reality. To become an Art form about an Art form, these paintings ask the old question in a new way. What is Art?