Style Files: Kate Middleton's North American Tour

Although Kate Middleton has just departed North America, her outfits remain under scrutiny.

Click here to see what Kate wore during her North American tour.

The Duchess of Cambridge, who used a personal shopper for the royal tour, reportedly averaged three to four outfit changes a day.

"I commend her," celebrity stylist Rachel Zoe told Good Morning America. "She's wearing, like, three to four outfits a day. It's not easy to do."

Click here to see what Kate wore during her North American tour

Middleton, who combined her high-street wardrobe with a slew of designer labels including Alexander McQueen, was commended by Zoe for maintaining grace and elegance in the public eye.

"(Middleton) is absolutely stunning," commented Zoe. "She's always smiling. She carries herself with such grace and elegance. And I think that her style just reflects a lot about who she is. And I think it's the ultimate dream and fairy tale for everyone, and just to watch it, and watch this young couple so in love, it's the dream, I think, for everybody."

Click here to see what Kate wore during her North American tour

Meanwhile celebrity stylist Robert Verdi said that although he was fascinated by the Duchess and her style, he thought her McQueen gown at the BAFTA dinner was "a little matronly" because of the conservative bust line.

However, Middleton was given the nod by Zoe for famously wearing the same outfit twice, saying it made her a much more approachable style icon. "I think that's great, and that white [Reiss] dress that she wore, she's worn that twice, which I love. I'd love to see her wear a very tailored tuxedo, like a beautiful, white tuxedo look or something would be really, really chic for her, but she's stunning and she looks good in everything."

Click here to see what Kate wore during her North American tour