It may bePrince Louis‘ birthday, but royals fans are the ones receiving a special gift!

After months of not seeing the little royal,Kate MiddletonandPrince Williamreleased three new photos of their third child on Monday in honor of his first birthday on April 23.

“He really is the most cheerful, smiley little boy – he’s always so happy and content,” a source tells PEOPLE ofPrince Louis.

PA Images/Sipa

Prince Louis 1st birthday

Prince Louis 1st birthday

While two photos show the stylish young prince in a perfect pose, a third image shows that the photo shoot doubled as playtime. Louis opens his mouth wide in excitement, and his red sweater is covered in grass!

Prince Louis 1st birthday

Keeping with tradition,Kate got behind the camerato take the sweet photos. The royal mom, whostudied art history at the University of St. Andrews, is a keen photographer and regularly shares photos she’s taken of her royal children. From birthday shots to first day of school moments, Kate can usually be found behind the camera capturing her family’s special memories.

Kate, 37, was behind thefirst official portraits of Louis, released just two weeks after his birth. A solo shot of Louis in a cozy white outfit was taken on April 26, justthree days after his birth. And the little prince is wide awake in his first-ever portrait.

Duchess of Cambridge/PA Wire

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Prince Louis and Princess Charlotte.Duchess of Cambridge/PA Wire

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Another picture shows the early bond betweenPrince LouisandPrincess Charlotte. Taken on May 2 (Charlotte’s third birthday), the proud big sister cradles Louis in her lap and places a sweet kiss on her sleeping sibling’s forehead.

Matt Porteous

Royal Christmas cards

Royal fans last sawPrince Louismaking his debut in thefamily’s Christmas card. The little prince looks directly at the camera while cuddled in Kate’s arms for the holiday portrait,taken in early fallat Anmer Hall.

source: people.com