Anna Yuzhakova takes her laptop computer with her to the restaurant car. She wants to show her international visitor the many charms of Siberian beauties. They are the result, she says, of years of mixed marriages by citizens from different republics of the former Soviet Union. She is herself a former model. Four times a year she crosses her native region by train searching for the next top models, the ones who will one day strut the catwalks of Paris or New York.