Here are some shots around the event hall of guests dressed up in different costumes which would arguably be more fashion than cosplay.

A maid being pushed around on a trolley

A girl standing in front of an accessory booth dressed in gothloli

2 girls dressed in casual high school clothes.

Particularly gothloli is something that I saw very little of when I was in New York, since 2008 in Europe it has become pretty popular at conventions and in the otaku community.