“Many artists have followers. Mark Ryden has disciples. Three years ago, the L.A. painter of “low brow” fame inspired an opening-night crowd at the Michael Kohn Gallery to dress up like trees. Thursday night, his most ardent fans showed up at Paul Kasmin in New York looking like Victorian ladies or gents, in keeping with “the Gay ’90’s old tyme” theme of his new show. The standout was a woman on stilts, wearing a corseted red dress decorated with plastic pieces of meat…”