NEW TWEEN: Gerren Taylor, touted as the next Naomi Campbell or Tyra Banks, was a fixture during Los Angeles fashion week in April and, more recently, spotted walking the Roberto Cavalli fall 2003 fashion show presented by Neiman Marcus in Las Vegas. But Taylor is 12-years old and admittedly still plays with dolls. It’s a juxtaposition of worlds not lost on ABC’s 20/20, whose producers have been following the Los Angeles native for an as-yet unscheduled profile. Neiman Marcus representatives, who said they weren’t aware of Taylor’s age until the day of the show, didn’t appear undone. “The most exciting thing about fashion is being able to discover new talent,” said a spokesman. But Taylor’s agent, Crista Sides Klayman of L.A. Models, conceded even seemingly shockproof companies have been scared off. Gucci recently backed out of hiring Taylor to informally model during an alcohol-laden cocktail party at the Beverly Hills store. “Sometimes the client gets uncomfortable,” Klayman said.