There’s something arresting about Rob Setrakian’s “The Continuum,” a sublime retrospective of his psychologically charged canvases at the Bolinas Gallery that opened on Saturday. Spanning five decades of oil paintings, prints and pastels, the work blends fast and loose gestures with intimate scribbles and delicate lines, all churning together in bold waves of color.

Running through Thanksgiving, the exhibition marks Mr. Setrakian’s reentry into the art world following a six-year hiatus taken after his wife…