A life-size portrait of Prince William and his wife Kate Middleton is on display at the Fitzwilliam Museum at the University of Cambridge.
It was the first time the royal couple had photographed their official portrait together for the first time.
The portrait was painted by award-winning British painter Jamie Koreth.
The painting was commissioned last year by the Cambridgeshire Royal Portrait Fund as a gift to the people of the United Kingdom.
According to the BBC, Koreth said it was "the most extraordinary privilege of my life" to make it.
It said the Duke and Duchess of Cambridge met the artist before visiting the Fitzwilliam Museum to view the portrait during its first day on public display.
As soon as the picture surfaced online, royal fans and pro-monarchy experts began praising the piece of art.
A body language expert called it a masterpiece and said that "everything was done skillfully".
Jesus Enrique Rojas said he had only one complaint regarding the picture.
He added that the royal couple seemed to be looking to the past, but that William, being the king of the future, should look to the future.
"I'm going to be blunt here: I don't like composition, very little in the direction they're looking," he said.