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Inside Fashion Week

Models wait to be seen by Il Park, second from left, creative director for fashion designer Carmen Marc Valvo, during casting for an upcoming show at Valvo's studio in New York. Valvo will show his Spring 2014 collection on Sept. 6 at Lincoln Center in New York.

An Insider Look at Fashion Week

"The emotional process of building a collection is a very volatile one," says designer Carmen Marc Valv, who has been working day-in, day-out with his team and muse-model Foster ahead of the preview of his spring collection on Friday at at New York Fashion Week.

Valvo opened his studio - really, his world - to John Minchillo, a freelance photojournalist for The Associated Press, during the process.