. . . Barnaby Conrad III and Martin Muller were in St. Petersburg to see Austrian artist Gottfried Helnwein's retrospective of 450 paintings at the State Museum. Helnwein is prolific; Martin always has a dozen or so of his paintings at his gallery, Modernism. ``In Germany some refer to Warhol as pre- Helnwein,'' said Barnaby, who has a Helnwein in his home. Get the picture?