The first time I saw one of Kaya Mar’s paintings was at the March for Europe a week after the Brexit vote. I took a picture of him, as did many of the people he walked past: a small man with a neat moustache carrying a peculiar painting, apparently original, of a cart being pulled by a blindfolded donkey towards the edge of the white cliffs of Dover, driven by caricatures of Boris Johnson and Nigel Farage, with tiny naked bodies and beatific faces.