Artwork by Scott Sandell, a Minnesota native and Sag Harbor resident, is on display all over the world. His “works-on-paper,” as he calls them, can be found in the U.S. Embassy in Venezuela, the U.S. State Department in Havana, Cuba, the Walker Art Center in Minneapolis, the Chrysler Museum, Harvard University, Emory University and many other places. But if serious art collecting is beyond your means, there’s another way to enjoy Sandell’s considerable talent – on a bottle of several local wines. In the fall of 2002, Richard Pisacano, owner of Roanoke Vineyards in Riverhead, approached Sandell about designing labels…