The Queen has unveiled a colourful stained glass window in the Chapel of the Savoy in London.
The window was created to commemorate the Diamond Jubilee and includes a depiction of her riding a horse accompanied by a corgi.
The initials ER are marked at the centre of the window, which is flanked by winged angels and figures representing honour and justice.
It is inscribed with the words: "I declare before you all that my whole life, whether it be long or short, shall be devoted to your service".
Of the 34 entries, it was the "playful" design by Edinburgh-born artist Douglas Hogg, 64, which was personally picked out by the Queen.
He said the image came from a seal he discovered while researching the royal archives.
"We know she likes horses, horse-racing and dogs. When I saw the seal, I thought it was a personal in-road into what the Queen herself is about as a person.
"I've included the image from that seal, the horse with her on it and the corgi snapping at the horse's heels. Below that, I've got the actual Queen's signature as well, so that's referring to her personally."
The Queen was joined by The Duke of Edinburgh at the service to celebrate the new window. She wore a mint-coloured coat and a matching hat, as well as white gloves, a black handbag and a silver brooch.