Duchess Sophie has entered a new decade, and she's ready to face it in style. The Duchess of Edinburgh—who turned 60 on Monday, Jan. 20—has certainly tweaked her wardrobe over the years, and multiple designers recently spoke to People about the royal's evolving sense of fashion.

Duchess Sophie has gotten back to work after celebrating her milestone 60th birthday.On January 21, the Duchess of Edinburgh has visited Dogs for Autism in Alton, Hampshire, where she learned about the positive impact of these

A new portrait of the Duchess of Edinburgh has been released to celebrate her 60th birthday. In the picture, taken by London-based fashion photographer Christina Ebenezer earlier this month, Sophie looks relaxed and happy as she perches in a window seat at her Surrey home.

I love how she is not afraid to try new things and she makes beautiful choices,” designer Suzannah Crabb of royal favorite Suzannah London tells PEOPLE

Sophie, the Duchess of Edinburgh is marking a milestone birthday! She turned 60 on Jan. 20, and friends and former colleagues have been honoring her contribution to the royal family – amid the release of the duchess' stunning new portrait.

Sophie, the Duchess of Edinburgh is turning 60 in style. The royal—who marked her milestone birthday on Monday, January 20—released a trio of stunning portraits to commemorate the special occasion over the weekend that seemingly included a subtle sartorial nod to her grand new title.