Portrait of the British artist Bridget Riley, 1964 (b/w photo) by Riley, Bridget (b.1931); Private Collection; © The Lewinski Archive at Chatsworth. Honoring the 60th anniversary of Bridget Riley’s inclusion in the 1965 exhibition The Responsive Eye at New York’s Museum of Modern Art, Hazlitt Holland-Hibbert has curated a showing featuring a selection of the…