Actually I was going to do the same thing! After years of hoping someone would start a photoshoot, I was finally - fuck it, I'll make an ass of myself trying to pronounce the names and finally get this popular show a shoot. But you beat me to it ^_^ I have a Sa-chan cosplay but was working on Tsukuyo that had issues before I could finish for AN this year, will definitely have it by next year.
I always see tons of Gintoki's and Elizabeth's and Kagura's, and a few Shinsemgumi around AN.
Ice&FireCon - Visenya Targaryn
CostumeCon - maybe
Anime North - Undyne - Undertale, Speedo'soundSonic - One Punch Man, Yuuri - YoI Day/Night AU, Shura - Blue Exorcist, Tom - Mystic Messenger
ColossalCon - Mai - Avatar tLA +swimsuit, Drunk!Yuuri - YoI, Mito - FoodWars
DragonCon - Johanna - HungerGames bunnyhop, Yuuri - YoINight, Undyne - Undertale, Dolores - WestWorld, Drunk!Yuuri - YoI
BeachCityCon - JasperTale
Teslacon - Steampunk