Wherever you look around the cool and spacious house, there are other pieces by Autumn, the US's foremost painting prodigy. A Picasso-esque canvas featuring a shapely figurine — modelled on her mother Katherine — hangs just inside the front door. In the corner is the inscription, "Autumn 2008". She was six.
There is another striking piece by the back door — a wax pastiche of the Grant Wood masterpiece of a glum-looking couple in front of a house. Instead of a pitchfork, the man is holding a huge crayon. It is called "American Graphic", and Autumn was nine when she made it.
Today she is a smart and pretty 14-year-old who cannot sit still. During our hour-long interview she jumps up several times to fetch books and other knick-knacks. In between posing for pictures she scrambles over furniture, skids around in her socks and cuddles Ginger, her "incredibly intelligent" seven-year-old poodle.
So far, Autumn's paintings have grossed about $7m in sales, according to Doug, who is descended from a line of artists connected to the Met in New York. He says he has set aside funds for college — Autumn has her eye on Yale — and has put mechanisms in place to prevent her from blowing the rest.
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Yet it is hard to imagine his only child careening out of control. She says she admires Taylor Swift much more than Miley Cyrus. In her free time she hangs out with children from the church down the road, where she volunteers.
Still, this is a delicate phase for the de Forests. Doug and Katherine are wondering whether to put Autumn in high school, or to keep her with tutors at a mostly online academy. Autumn, for her part, wants to go to a "brick-and-mortar" school from September. "I think it's important to be able to be exposed to real-life situations," she says. "Home schooling is great for travelling but you're not experiencing what other kids are experiencing."
Her parents worry about committing her to schools in Las Vegas, which are reckoned to be among the least distinguished in the US. But they also worry that her upbringing so far — bouncing from exhibition to masterclass to primetime television show — has been just a shade too unorthodox.
Katherine says she has been reassured by Outliers, Malcolm Gladwell's book on successful people and the sacrifices they make. "As long as the process remains healthy, I can support it, as a mother," she says.