Los Angeles’ Anime Expo is one of the biggest cons on the calendar, with this year’s show drawing over 100,000 guests. So, yes, there was some very good cosplay there.
Photographer Mineralbluwas there taking shots, and below you’ll find some of his best, including a video that shows most of these in action. You can see more at his Anime Expo gallery
Note: I’ve included as many credits as I could, but if you recognise/are any of the uncredited cosplayers below, let me know so I can add!