The Duchess of Cambridge wowed in a pale pink dress as she headed to the National Portrait Gallery to see photographs of herself shot for Vogue.
Kate, who is also a cover star for the magazine's June centenary issue, looked chic in Alexander McQueen for her third engagement of the day.
The Duchess wore her trademark nude heels and had her hair loose at the gallery, where she was greeted by editor-in-chief of British Vogue Alexandra Shulman.
In the portraits taken in the Norfolk countryside earlier this year, Kate is shown looking casual and relaxed - a marked departure from more formal official images of the Royal Family.
In a black-and-white close-up shot, the Duchess is wearing a black fedora hat from Beyond Retro and a charcoal brown double-breasted suede coat and white shirt, both from Burberry.
In another, a colour photo shot in soft January sunlight, Kate is leaning on a rustic gate, wearing a black and red striped long-sleeved top from Petit Bateau and black Burberry trousers.
The photos, taken by British photographer Josh Olins, are part of the Vogue 100: A Century Of Style exhibition, and are on public view in the National Portrait Gallery, where Kate has been a patron since 2012.
The latest photos of the Duchess were styled by British Vogue fashion director Lucinda Chambers and a colour image of the Duchess in the brown Burberry coat and fedora is on the cover of the magazine's June issue, which is out on Thursday.
Chatting to Olins, Kate said of the portraits: "It doesn't look like January. You did a very good job."
The Duchess, a keen photographer herself who has taken official pictures of Prince George and Princess Charlotte, discussed photography with Olins as well as the exhibition decision-making process.
She told Olins: "Thank you Josh. Really good to see you again."
As she was shown around the exhibition, Kate asked lots of questions and commented on the glamorous images.
She said one had "fantastic texture" and also remarked on the decision to frame a collection of images with red frames on a red wall - a look she described as "red on red".
Kate asked about how the exhibition was "split up into different sections" as each room shows off a different decade.
Nicholas Cullinan, director of the National Portrait Gallery, showed the Duchess around the exhibition, and afterwards said: "She has a good eye."
Talking about Kate's reaction to seeing the portraits of herself hanging in the gallery, he said: "I think she was very pleased by them."
Cullinan praised Olins and said he captured "something very fresh and very spontaneous and relaxed".
Asked what Kate was talking about as they browsed the exhibition, the gallery boss said: "She's really knowledgeable. I mean this is not the first time I've met her, and what came across in my first meeting with her is that, obviously she studied art history and she has a real understanding of art history and especially photography, but also a real enthusiasm for it.
"She really is genuinely engaged and she was asking some very intelligent and engaged questions tonight as we went around.
"It's always a joy to talk to someone when they really understand and have a love for a subject."
He said she asked "detailed" questions about the process, the technicalities, from taking an image to choosing how to print it and how to hang it.
Cullinan added: "She definitely knows her stuff."