 This change in style is, for example, apparent in the double portrait of John Maynard Keynes and Lydia Lopokova in the National Portrait Gallery, London.Keynes became an important patron of Roberts through the London Artists' Association, and the paintings that Keynes purchased are now in the collection of King's College, Cambridge.While Roberts was critical of the financial support that he received from the London Artists' Association, it is difficult to imagine how the family would have survived without this patronage.