ATL Falcons RB Steven Jackson is blowing up in the art world -- in fact, TMZ Sports has learned he sold more than HALF of the work he displayed at a recent L.A. show ... with one piece raking in $7k!!
Jackson's artistic side was featured on HBO's "Hard Knocks" -- where cameras rolled at his first exhibit back in July. Jackson's work is based off photographs he's taken all over the world.
We spoke with a rep for the Hamilton-Selway Fine Art gallery (where the show took place) who tells us Jackson sold 13 of the 23 pieces that were on display -- ranging from $3,500 to $7,000.
"[Steven] did great," the rep said ... "Normally, it’s a mix when you have a celebrity exhibit -- but we had high-end collectors who bought some of his pieces."
We're told the big seller was a piece called "Amazon" -- which sold to a private collector for $7k.
And get this -- Steven's former Rams teammate Chris Long didn't just come to support the guy, he bought a piece called "Game Day."
The gallery is so pumped about Steven's work -- they're planning to feature his work in a show on the East Coast ... but we're told that will probably take place next year ... after football season.
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