A photograph of the Queen and the Prince of Wales has been released to mark the end of her 90th birthday year.
The photo shows the Queen with her son Prince Charles in the White Drawing Room at Windsor Castle.
Previously unpublished, it was taken before the final night of celebrations at the Royal Windsor Horse Show in May.
Fashion photographer Nick Knight, who took the photo, said he had wanted to create something that showed “warmth, humanity… strength and tradition”.
The Queen, who last year became Britain’s longest-reigning monarch, turned 90 years old in April.
She celebrated the occasion with a series of events, including a private black tie banquet at Windsor Castle with her friends and loved ones.
Queen Elizabeth’s official birthday was marked in June with a service of thanksgiving and a picnic on The Mall, in central London, for 10,000 guests.
In a speech at the event, the Queen had joked: “How I will feel if people are still singing Happy Birthday in December remains to be seen.”
About the newly-released portrait, Mr Knight said: “It was a great pleasure and an honour to photograph Her Majesty The Queen and HRH The Prince of Wales at Windsor Castle.
“I wanted to create a modern portrait that showed warmth and humanity as well as strength and tradition.”