I took a series of shots of the two women examining the art work. All the time a third woman was waiting patiently to take a closure look - she gave up waiting and went to take a closure look.
The image has two subjects with a common title "Knowing Look":
there is the expert examination of the woman of the art work,
and
the glance that passes between the other two women. But is it a reaction to the other woman or is the woman on the right responding to a comment made about the painting by the other woman.