Taking photos of young children can be tough. If they aren't crying, they're not looking at the camera, or fighting with their sibling. But managed to get all—well, most of—the bridesmaids and page boys to smile for the camera (little John Mulroney was very stoic in the large group picture).
Perhaps his most impressive feat is that he got a big grin out of Prince George in both of the official royal wedding portraits. He had appeared to be a bit shy earlier in the day, hanging on to Prince William's arm.
So how did Lubomirski do it? He bribed them with candy, simply asking, "Who likes Smarties?"
"They were being bribed with one Smartie here, one Smartie there, so as soon as the kids came onto the set, I immediately just shouted out 'Who likes Smarties?' and then everybody, hands up, smiles, even some adults put their hands up," Lubomirski .
"Some parents were trying to wrangle their children, other uncles and aunts were talking to their nephews and nieces. It was a family, that was essentially what it is."
Smarties in the U.K. aren't the sugary, chalky candies you might be imagining. Rather, they're more like M & Ms—brightly colored circular treats with milk chocolate in the center.
"It has been an incredible honor and privilege to document the Duke and Duchess of Sussex's inspiring journey of love, hope and family; from the engagement photos, to the wedding portraits on Saturday," Lubomirski said of the experience on Monday on Twitter. "Thank you to everyone at and ."
He also thanked everyone on Instagram for their support and encouragement in the lead up to the big day.