Shinner, who is best known for his work with celebrities and fashion magazines, has spoken about how he takes pride in helping his subjects relax, with this being one of the most informal and cheerful images of the royal family to date.
The set is a new photographic direction for the family, who have previously preferred color outdoor country photo shoots for their Christmas card.
They have created their own tradition of publishing pictures of the children taken by the Princess of Wales.
This black and white image is reminiscent of images of young Princes William and Prince Harry as boys with their late mother and father.
It was the first royal commission for Shinner, a Yorkshire-born photographer who now lives in London and has taken portraits of actors, singers and models for Vogue, Esquire, the FT, the New York Times and the Wall Street Journal.
The first image inspired royal watchers to comment on how the children have grown this year and how Princess Charlotte has transformed from a little girl into a smart schoolgirl.
Prince George wears a Ralph Lauren shirt, a brand his late grandmother Diana loved.
The photos were taken in Windsor, where the family lives in Adelaide Cottage.
“I've always loved portraits, and the people I enjoy photographing the most are the ones who need some warm-up time,” Shinner said in an interview with Harper's Bazaar this year.
“Maybe they're nervous or don't want to be there, or maybe they find being photographed as enjoyable as going to the dentist, but I love making these people feel comfortable and chatting to them – usually about… “anything other than the shot we’re about to take – and then getting them comfortable enough to take a good picture.”
Christmas at Sandringham
The King and Queen will celebrate Christmas Day with other members of the Royal Family at Sandringham.
The private Norfolk estate will once again be the venue for traditional royal celebrations.
The King and Queen are expected to be joined by the Prince and Princess of Wales and their children Prince George, Princess Charlotte and Prince Louis for the morning service at St Mary Magdalene Church.
Along with the Princess Royal and her husband Vice Admiral Sir Timothy Laurence, the King and Queen waved to well-wishers as they attended a Christmas Eve service at the church on Sunday.
Royal Christmas traditionally involves welcoming people outside the church and having a family dinner with turkey and all the trimmings.
Sandringham House was the private home of four generations of British monarchs for more than 160 years and is now owned by the King.
The King's second Christmas message as monarch will be broadcast at 3pm and this year it was recorded in the Center Room at Buckingham Palace, which leads to the iconic balcony of the royal residence.
The room is decorated with a live Christmas tree, which will be replanted after the broadcast.
Natural and sustainable decorations hang from its branches, including hand-turned wood, dried oranges, glass balls, pine cones and paper.
The king, like Queen Elizabeth II, writes his Christmas broadcasts and last year he followed his mother's tried-and-tested template, a personal reflection of the year that touches on current issues and has a Christian framework.