Prince William and Duchess Kate’s three children were all smiles while posing for their 2020 holiday card.Prince George, Princess Charlotte and Prince Louis were front and center in the royal family’s Christmas card photo, which they shared via Instagram on Wednesday, December 16. The couple’s youngest son, Louis, however, stole the show with his adorable facial expression.In the snap, the parents sat on a barrel of hay with wood logs stacked behind them.