Kassandra Tyst’s ELSIE LOVELACE’S GALLERY OF ENCHANTMENTS, featuring a gallery of living paintings, an enigmatic aristocrat who spent the last century stuck in a portrait, and the docent who never thought she had the ability to free him—or that this very ability might be as dangerous to her person as he is to her heart—to Kirsiah Depp at Grand Central, by Lucienne Diver