Ah, flattery takes you a long way, Robert dear. I'm doing another master copy, a Rembrandt portrait. Boy do I learn things! Even if I paint with colour, I follow his shapes. I noticed that both Rembrandt and Raphael do not make irises (of the eye, not flowers) quite angular. One doesn't notice that until copying the lines, as it looks just right. In fact, it looks more real and natural than round irises.

The unbreakable glass exists, as acrylic. If we think museum glass is expensive, then we can console ourselves when looking at the cost of acrylic museum...

I'd love a frame to generate an invisible energy field which works as a barrier just like a glass. It wouldn't even need cleaning. :-)