The paintings: Oprah is elegantly coiffed, gowned in a long blue dress, into which a portrait of her in The Immortal Life of Henrietta Lacks has been etched. Lincoln, his sad visage rising above the American flag that envelops him, stands in front of a reproduction of a painting by Henry Ogden, “The Battle of Spotsylvania.” Afong Moy, the first woman from China to arrive in the United States, is clad in a culturally traditional red wedding dress, hands primly—or nervously?—clasped at her waist; her head entirely concealed by a veil. We’ll never see her face—which the artist hopes might prod…