This is a great story. And I adore this image.
“The more I paint, the more I want to paint,” she says. “I didn’t really like street art that much before this; I always thought it was just kids making a mess of the walls. But now I understand the history behind it and the way of thinking and I appreciate the artists more.”
http://www.theguardian.com/artanddesign/shortcuts/2015/sep/13/the-graffiti-grannies-of-lisbon