What a smile! The latest photo of Prince Louis and mom Kate will brighten your day

On Sunday the royal family revealed four family photos from Prince Louis's christening, and on Monday morning Kensington Palace shared one more for good measure. The latest photo, taken by photographer Matt Porteous, shows the baby flashing a huge grin while in the arms of his proud mother, Kate Middleton. If he learns to wave like his big sis, we’re all in trouble.