Duchess Kate has shared a new picture of herself to promote her upcoming photo collection! Hold Still: A Portrait of Our Nation in 2020 will be released later this year, and the Duchess of Cambridge has given the world a sneak peek of the special photo book!

Kate channels Princess Diana with pie-crust collar shirt

Kate is shown smiling while holding a camera in the picture that she shared, looking excited about being behind the lens. The photo was taken at Anmer Hall by royal photographer Matt Porteous, and as People points out, the collared shirt Kate wears is reminiscent of a style popularized by another member of the royal family!

That's because the pie-crust collar peeking out from underneath Kate's red sweater brings to mind none other than Princess Diana, who frequently adopted the style. Kate has also been spotted wearing similarly styled shirts during her other recent appearances, having fun with the frilled collar!

Duchess Kate Goes On Museum Outing With Prince George And Princess Charlotte

Kate says she wanted to "create a lasting record" of lockdown

Kate also took the opportunity to share the book's foreword in her Instagram caption! "When we look back at the COVID-19 pandemic in decades to come," she began, "we will think of the challenges we all faced – the loved ones we lost, the extended isolation from our families and friends and the strain placed on our key workers."

Last year, Kate launched the Hold Still photo project, encouraging people across the United Kingdom to capture life in lockdown. Ultimately, 100 images were selected that represented three categories: "the incredible acts of kindness, the helpers and heroes who emerged from all walks of life, and how together we adapted to a new normal." Some of the photos were even displayed as part of a national exhibition!

Kate shared that she wanted to "use the power of photography to create a lasting record" of this time, which would "capture individuals’ stories and document significant moments for families and communities." On Sunday, Kate also posted a video of her unboxing the first copies of the photo book! She revealed that it will be available May 7, with proceeds benefitting the National Portrait Gallery and Mind, a leading mental health charity in the U.K.