As well as sharing the never-before-seen image, Katy seemingly confirmed that Ellie has taken her husband's surname, something recent famous brides Sophie Turner and Hailey Baldwin also opted to do.
Katy attended the celebrity-filled wedding with her fiancé Orlando Bloom. Royal Princess Eugenie and husband Jack Brooksbank were also there, as well as James Blunt and Sienna Miller.
"This weekend I married the love of my life, in God's own country, surrounded by the people I cherish. Overwhelmed with gratitude," Ellie wrote on Instagram in the days following her wedding. "Thank you eternally to everyone involved in such a special time, including every single person that traveled from far and wide to come and celebrate with us at York Minster- a place that my husband and his family hold close to their hearts. I will never forget your support and generosity. We both send you all so much love and a massive hug xx"