In Martha Edelheit’s groovy scenes of erotic languor—featuring nudes in unselfconscious poses with intent or with distant facial expressions, usually basking in the sun—the pulsing undercurrent of optimism is most seductive. That, and the THC-Technicolor extravagance of her realist style. The ninety-one-year-old artist’s exhibition here, “Naked City, Paintings from 1965–1980” which included several monumentally scaled works, spanned a period of social upheaval, when the artist labored with visionary feminist vigor. She rendered slack dicks and unidealized bodies in detail, holding the sexual