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OTRC: Tim Gunn and Roshumba Williams weigh-in on royal wedding fashion

Kate Middleton arrives at Westminster Abbey at the Royal Wedding in London Friday, April 29, 2011. (AP Photo / Martin Meissner)

Tim Gunn of "Project Runway" and model Roshumba Williams who was a judge on "She's Got the Look," discuss who they thought were the best and worst dressed at Friday's royal wedding.

The fashion experts sound-off on the bride's long-awaited gown, the whimsical collection of hats and what we can expect to inspire weddings around the world from the fashions we saw at Westminster Abbey.

"[Kate Middleton's] dress, in my view, is beyond anyone's imagination or description and Kate couldn't look any more fabulous and Princessly, if not Queenly," Gunn told ABC News.

Williams agreed that that the dress was perfect and along with many people, was thinking of Prince William's mother, Princess Diana, whose royal wedding about 30-years ago was one for the history books.

"She did have really big shoes to fill after Princess Diana but to me, it was reminiscent of Grace Kelly," Williams told OnTheRedCarpet.com. "It was classic and royal and very Princess-like, but at the same time it was very elegant... I just thought it was really spectacular."

Gunn agreed with the comparisons to Kelly's gown, but felt that there was a modern take which suited the young Princess.

"I find that to be a great compliment, frankly," Gunn said. "Princess Grace was such a potent fashion icon and while there are similarities in the dress - a very fitted top, an exuberant skirt, I found the neckline of Kate's dress to be very modern... sexy, but all-together very appropriate, as was the lace trim on the top. I thought the dress was absolutely ravishing."

One of the most festive parts of the ceremony was all the hats and fasteners worn by the guests. Check out our slideshow of some of the best hats.

"[The Queen] wore this gorgeous Philip Treacy hat, which by the way, as I understand about forty people at the royal wedding wore Philip Treacy hats. To me, they represent the royal family and the fact that they do everything perfectly, from head to toe - the pomp, the circumstances, the pageantry, everything... and Philip Treacy's hats are that detail that tops everything off."

Though speculation on the bride's gown went on for months, it was only a matter of minutes before designers begun working on reproductions for brides who still harbor princess dreams. Williams thinks that the dress won't be the only thing finding its way into future weddings though.

"The knock-offs have already begun being produced, you're going to see the dress everywhere in weddings this summer and in the fall, winter and beyond. I think it has inspired us to kick up our game... I think you're going to actually start seeing more people wearing pastels, wearing hats and wearing fabulous silky fabrics like we saw today at the royal wedding."

Williams was discovered in Paris by fashion designer Yves St. Laurent and became a regular on fashion runways. In the early 1990s, she appeared in the Sports Illustrated Swimsuit Edition. She has hosted several lifestyle and make-over shows and was a judge on the Oxygen Network's styling competition series "Tease" and "She's Got the Look," where women over the age of 35 compete to become a model.

Gunn was on the faculty of Parsons the New School for Design from 1982 to 2007 and rose to fame after starring as the on-air mentor in "Project Runway." The fashion guru parlayed "Runway" into his spin-off show, "Tim Gunn's Guide to Style" and his book, "A Guide to Quality, Taste and Style."

Watch Tim Gunn's royal wedding fashion analysis below.

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