Catherine, Duchess of Cambridge and Prince William, Duke of Cambridge leaving the Lindo Wing this week.
Photo / Getty
The new Princess of Cambridge is only four days old, but royal fans are already been given a glimpse at what she could look like aged 10.
US forensic artist Joe Mullins has studied photographs of Prince William and wife Kate and used the latest computer technology to predict how Princess Charlotte might look.
The girl has a glossy mane of brown hair like the Duchess and her Middleton nose.
The estimate shows that the child will have green-blue eyes, which is a mixture of both her mother and father.
But she is given the Windsor chin and William's lips.
In the past he has taken the faces of other well known couples and imagined how their children may look, and has carried out magazine work where he "ages" celebrities such Brad Pitt and Angelina Jolie.
Joe Mullins is a highly respected forensic artist based in Washington.
He trained as a graphic designer before joining police doing both age progressions of missing children and facial reconstruction from the skull.
His work has helped trace countless missing children over the 11 years he has worked in forensics.
Mr Mullins said he took recent pictures of the Duke and Duchess, and took account of their colouring, and predominant genes and outstanding features, such as Kate's olive skin, William's ears, and their clear complexions.
While he tries to make then as "cute as possible" he says it is all highly scientific.
"For Kate and William's baby - I think there is a lot of good genes in the mix there.
"There is a science behind the process. The darker features are more dominant with Kate's olive skin and dark hair."
The look is remarkably different to Prince George, who has inherited a lot of his father's characteristics.
"Over the years I have done lots of different celebrities.
"I did Jennifer Anniston and Brad Pitt when they were married and I have done a few of Angelina Jolie.
"When I did Katie Holmes and Tom Cruise I did the child as a boy, but the image actually does look a lot like Suri.
"My day job means I have acquired a skill which means it is always in the ball park.
"I was inspired after seeing some other versions of celebrities children that were done. I remember thinking 'those things look scary. I could do something more accurate.
"It's all forensic art based on family hereditary going backward to make these fun baby images or forward to depict what children will look like now and get them back home to where they belong."
The Princess of Cambridge was finally revealed to the world as Charlotte Elizabeth Diana yesterday - in a touching nod to her grandfather, her grandmother and her great-grandmother.