Notes

Celia Elegant and Celia Musing are two examples of the numerous portraits with which Hockney has celebrated his close and enduring friendship with the designer Celia Birtwell, who became the artist's muse in 1967.

Birtwell is known for her acclaimed romantic and feminine designs, which provided the drama to her husband Ossie Clark’s cutting-edge clothing designs. Together they were at the top of the fashion industry in London in the 'Swinging Sixties' dressing the era’s jetset and rock aristocracy: the Beatles, Jimi Hendrix, Twiggy, Mick and Bianca Jagger, Talitha Getty and Marianne Faithfull. The couple are most famously represented in Hockney's large double portrait Mr and Mrs Clark and Percy, 1970-1, in the collection of the Tate Gallery, London.

http://www.tate.org.uk/art/artworks/hockney-red-celia-p20109
http://www.bbc.co.uk/britishstylegenius/content/21930.shtml