“If you raise the light levels,” the British artist Bruce Munro said in 2016, referring to his installation at Uluru, in central Australia, “you fight with the sun and the moon.” So he keeps the lights dim. Munro’s work is about emphasizing nature—its beauty, its breadth—and eliciting awe from the viewer. A new exhibition in a 15-acre southern California meadow employs 58,000 “flowers”—miniature, multi-colored, solar-powered, fiber-optic spheres—to light up the lightly rolling hills of its host. —J.V.