Thanks very much for visiting the IAM. So far the feedback has been very positive but a few people have said that the lighting system (having them instantiate in random locations) was a pain in the neck.
I liked the effect but I can see now how it doesn't add to the experience of the paintings. I've changed it so that the lighting cubes are lined up around the perimeter of the walls. You can still grab and move them if you would like to change the lighting but their default position should be less intrusive.
The Infinite Art Museum is an evolving thing. Please keep giving feedback!