The Princess wore her hair down for the photo, letting her enviably long locks cascade past her shoulders in loose waves.
She went for an everyday makeup look, complete with slightly rouged cheeks, a touch of bronzer, nude lipstick, bold brows and dark eye makeup.
Royal fans were quick to praise the Princess’ latest look, and the photo has amassed a whopping 46,000 likes so far.
Royal fan account @prince_princess_wales commented: “Happy Mother’s Day to the most beautiful and fantastic mum.”