Great photos and commentary. Thx for sharing.
What camera did you use? Without flash?
Fuji FinePix F 20 (now about four years old I think)
No flash. I don't think flash is permitted; and even if it were, my experience is that it doesn't always work well as sometimes the surface of a painting, or parts of it, are highly reflective. Of course, if there is glass in front flash is even more difficult, but glass always presents a problem.
ML/NJ