According to art expert Jeff Salmon, The Duchess of Cambridge doesn't need to keep her day job.

Kate and William visited the Inner-City Arts school in the Los Angeles area on the last day of their royal tour. The newest royal showed off her talent with a charming painting of a snail.

Of the painting, Jeff said: "Leonardo da Vinci is credited as being one of the only people able to draw a perfect circle, yet Kate's three circles are nearly perfect.

"This points to a confident, free-spirited nature. Kate's work is worth between £10,000 to £15,000.

"Had she written a witty remark, it could have fetched double or triple that."

The critic also reckons that "William's looks like a stretched person. "He could be saying that he won't be stretched like his mother was. It also looks like Di's - now Kate's - engagement ring."

Jeff Salmon is a dealer on the Channel 4 show Four Rooms, on every Tuesday at 8pm.

Photo: © Getty