Martin McGuinness Deputy First Minister of Northern Ireland, poses next to a portrait of Queen Elizabeth II painted by artist Colin Davidson, during a Co-operation Ireland reception at Crosby Hall in London, Tuesday, Nov. 8, 2016. (Jeff Spicer/Pool Photo via AP)
A portrait of Her Majesty Queen Elizabeth painted by Isobel Peachey decorates the luxury cruise liner Queen Elizabeth docked in Port Everglades in Fort Lauderdale, Fla., Sunday, Jan. 16, 2011. (AP Photo/Alan Diaz)
Artist Justin Mortimer kneels before his controversial new portrait of Queen Elizabeth II at the Royal Society for the Encouragement of Arts, Manufacturers and Commerce in central London Tuesday January 13, 1998. The portrait shows a departure from traditional portrait painting, depicting the Queen in a relaxed mood and wearing no crown or jewellery and will hang in the Society's headquarters. (AP Photo/Louisa Buller)
The Queen views a portrait of herself painted by Peter Hawkins, at rear, during a visit with the Duke of Edinburgh to Radley College, Abingdon, Oxon, to open a new building Thursday Nov. 27, 1997. (AP Photo/ WPA POOL/ John Stillwell)
Andy Warhol's Reigning Queens: Queen Elizabeth II portraits on show in the Lower Library at Windsor Castle, after being acquired by the Royal Collection.
A portrait of Queen Elizabeth ll and Prince Philip, Duke of Edinburgh by Kenyan artist Joachim Onyangeo outside the Mildmay Centre for Aids Orphans in Kampala, Uganda.
Nigerian artist Chinwe Chukwuogo-Roy stands in front of a portrait of Britain's Queen Elizabeth II which she was commissioned to paint to mark the Golden Jubilee. The painting was unveiled today.
Edward Halliday putting the finishing touches in his St John's Wood, London, studio to his portrait of Queen Elizabeth II, which is to hang in the Southampton Bar.