Prince Harry and his American fiancee Suits actress Meghan Markle released a series of portraits on Thursday (December 21) by New York-based fashion photographer Alexi Lubomirski to mark their engagement. And the photos went down a storm that Kensington Palace subsequently released a third bonus black and white candid portrait with the couple in a full-length pose. A spokesperson expressed the engaged couple’s gratitude on Instagram: “Thank you so much for all of the wonderful comments following the release of Prince Harry and Ms Meghan Markle’s engagement photographs. ‘The couple are so grateful for the warm and generous messages they have received during such a happy time in their lives. As a way to say thank you, they have decided to share this candid photograph from the day of their portrait sittings directly with all of you.” Lubomirski, a former Mario Testino assistant, famed for his photos of Harry’s mother Princess Diana, took the pictures at the royal retreat of Frogmore House, near Windsor Castle, west of London, where the couple are due to marry on …