All the times Kate Middleton has shared her personal photos of Prince George, Princess Charlotte and Prince Louis

The Duchess of Cambridge's hands-on approach to parenting has seen her take many gorgeous photos of her three children. And on special occasions such as birthdays and first days at school, Kate delights fans by sharing a few of her snaps with the public. She started the tradition back in 2015 when she took the first official portraits of her daughter Princess Charlotte, instead of hiring a photographer.

Kate, who studied history of art at university, had a passion for photography long before she joined the royal family. Her official profile on the British monarchy's website notes her love of taking pictures.

"Other hobbies include more recreational sports such as hill walking, tennis, sailing, swimming, and the arts, including photography and painting," the profile reads. "The Duchess's enthusiasm for photography saw her taking photographs as part of her role during her time working within Party Pieces, a family company owned and run by her parents."

Let's take a look at some of Kate's best work, starting with Prince Louis…

For Louis' first birthday in April 2019, the Duchess released three gorgeous portraits of her youngest child. The little boy was pictured playing in the gardens of their home in Norfolk, getting his hands and clothes mucky from all the moss. Louis looked adorable flashing a gummy smile at his mum.

Another portrait showed Louis sporting a more serious expression. With his fair hair, strong brows and cute Middleton nose, he looked the spitting image of his mum Kate when she was a baby.

MORE: The new Love Island contestants have been revealed! See them here

She's growing up so quickly! On the eve of her fourth birthday, Kensington Palace released three new portraits of Prince William and Kate's little girl Charlotte. She was photographed in the family's garden at Anmer Hall, perching on a fence and running around the grounds.

Keep clicking for more photos of the royals!

Another snap showed Charlotte sitting down on the grass at Kensington Palace, dressed in a pretty blue floral smock dress (the Betsy Dress from British childrens' designer Trotters).

MORE: Rachel Riley steps out for first time after announcing pregnancy

This tender snap of Prince Louis at home at Kensington Palace was taken on 26 April 2018, just three days after his birth. A statement from the palace read: "Their Royal Highnesses would like to thank members of the public for all of the kind messages they have received following the birth of Prince Louis, and for Princess Charlotte's third birthday."

The second portrait showed the newborn and birthday girl Princess Charlotte, who turned three when this photo was taken. Charlotte sweetly kisses her baby brother on the head, wearing the same blue cardigan that Prince George wore in 2016.

Proud mother Kate marked Princess Charlotte's first day of nursery school with a pair of adorable new portraits in which the youngster posed in a red coat with matching shoes, and a pink cashmere scarf by fellow royal Marie-Chantal's kids' line.

Charlotte joined Willcocks Nursery School in London in January 2018. At the time, Kensington Palace wrote in a statement: "The Duke and Duchess of Cambridge are very pleased to share two photographs of Princess Charlotte at Kensington Palace this morning.The images were taken by The Duchess shortly before Princess Charlotte left for her first day of nursery at the Willcocks Nursery School."

In January 2016, the Duchess also documented Prince George's first day at nursery. The little boy looked ready to hit the books as he arrived at Westacre Montessori, located near his home in Norfolk.

To mark Princess Charlotte's second birthday, Kensington Palace released this lovely picture, taken by Kate. "The Duke and Duchess are delighted to share a new photograph of Princess Charlotte to mark her second birthday tomorrow," the palace announced last May. "TRH would like to thank everyone for the lovely messages they have received & hope that everyone enjoys this photograph as much as they do."

In 2015, Kate became the first member of the royal family to take the first official photographs of a royal baby, with the Duchess releasing her own images of newborn Charlotte being held by her big brother George at the family home, Anmer Hall, in Norfolk.

"Kate is genuinely good at taking portraits," said The Sun's veteran royal photographer Arthur Edwards, who has captured the lives of the royal family on camera for more than 40 years.

"She fills the frame and uses natural light. She has captured some amazing pictures of her children," he added.

The siblings' sweet bond was apparent from the very first portraits.

To celebrate six months since Charlotte's arrival in November 2015, Kate released some gorgeous photos of her daughter at home in Anmer Hall in Norfolk.

The doting mum again treated fans to a set of portraits in May 2016, to celebrate Princess Charlotte's first birthday.

With perfect lighting and a soft background, these portraits of Charlotte could easily have been taken by a pro, proving Kate has mastered her photography skills.