In his most intimate show ever, Zac Posen debuted his Fall 2013 collection during New York Fashion Week to attendees at the Plaza Hotel on Sunday, which the designer said was intended to evoke old world glamour and history.

"My fantasies about glamour or about society, about travel, all took place here growing up in New York. When you drive by great historical backgrounds, this is where Halston did his first shows, where Oscar de la Renta used to show," Posen told The Associated Press.

"I just wanted to give everybody a sort of joyful, calm moment during the hustle and bustle and rush of Fashion Week. And have a moment to get into craft construction and sort of chic, effortless dressing."

In tones of deep brown, gold, rust and dark green, it appeared that Posen was building upon his inspiration from the Spring 2013 season, which he told IBTimes back in September was American debutantes and the photographs of society mavens by Cecil Beaton. Though this season, Posen was as thoughtful as ever with his artful eye to detail, like with soutache embroidery and draped chiffon. 

One standout difference this season was Posen's inclusion of separates, with velvet trousers paired with fur-trimmed longer overcoats and origami peplum tops with to-the-knee skirts and ankle pants in between the gowns and cocktail dresses.

Even more groundbreaking than the separates was the fact that Posen's audience was nearly devoid of celebrities compared to past seasons, with only Molly Sims and Katherine McPhee as the biggest names front row. Just two days prior, Posen, who is also a guest judge alongside Heidi Klum on "Project Runway," joined Klum, Nina Garcia and Michael Kors for the runway show honoring the finalists.

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