I was in Tate Britain, and I saw the man trailing his raincoat, looking at the Constable painting that’s in the second photo here. He moved on and I didn’t get the shot, but then I saw him walking past a painting of ships, and that did nicely.
The two people sitting in Tate Britain and looking at John Constable’s painting Salisbury Cathedral were interesting. She was an American cow-girl by her dress. I took a photo of her with my phone when she was standing, struck by the harmony of colour between what she was wearing and the painting.