When it came to modelling for a painting, Burne-Jones had a very liberal attitude to gender. From the drawings he made in his sketchbooks, which were for personal use only, he was not concerned with the sex of the sitter but more with the psychology and body language. He appears to have placed breasts on the male figure on some of the figure studies in this series in Sketchbook 66, purely to experiment with their position within the projected painting. This attitude to androgyny he inherited from the 1860s, when he was intimate with Simeon Solomon. This series of nude figures in sketchbook 66 appear to relate to the whole of the Perseus series and it is difficult to ascertain exactly which figure or figures they are for Acc. nos 15.19. 57a through to 15.19.60a.