Royal watchers are divided over the Wales family's Christmas portrait after eagle-eyed fans spotted a bizarre detail in the shot that some are calling an 'optical illusion'.
In the black and white photo, Prince Louis poses with his left hand resting on the arm of a chair where his elder sister Princess Charlotte sits.
Upon closer inspection, it looks like he's missing a finger, as a clear gap is visible in the centre of his hand.
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The odd detail sparked a flurry of comments from social media users, with several accusing the royals of using Photoshop or AI software to edit the portrait.
"I'm not a fan of this photo. Look at Louis and his left hand, what is going on with that?" one wrote, another adding: "Is Prince Louis missing a finger? What in the AI is going on."
But Louis is not missing a finger in the portrait; it's actually just an optical illusion.
In the photo, the young prince has his left hand draped over the arm of Charlotte's chair with his index and middle fingers resting on the wood.
His ring and pinky fingers then drop down to rest over the edge, leaving a space between his middle finger and ring finger.
Because his thumb is out of sight, it appears that he only has four fingers with one 'missing' in the middle ¨C but it's just a trick of the angle and the placement of his hand.
Though several royal watchers pointed out that it was just an optical illusion due to the position of his fingers, some critics weren't convinced.
A small number started pointing out other supposed "Photoshop fails" in a bid to prove the portrait had been doctored.
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"Photoshop fail!! There's an extra leg in this picture!!!! How did the photographer did not notice?? Omg," one wrote on Instagram.
It appears the comment author mistook the leg of the chair Charlotte was sitting on as a human leg in the black and white photo.
Social media users have become increasingly wary of edited and AI-generated photos in 2023, especially in the wake of several high-profile photo hoaxes.
Nine's Entertainment Editor Richard Wilkins was targeted in one such hoax when fake photos of his 'arrest' went viral earlier this year.
?"I don't know what to do about it, this has been going on for some time," he told 2GB's Ben Fordham on Ben Fordham Live! at the time. "It never happened."
Though it's wise for social media users to educate themselves about AI-generated content and how it can be misleading, the royal portrait does not appear to be edited.