The opening of the Oni-con 2011 cosplay contest featured two cosplayers dressed as Miku and Luka that had such wonderful voices. The light effects that were going on through their singing skit were so pretty and as a result the shots of them turned out to be my very favorites of the con.
Cosplayer - Lorelai of Angel Anatomy as Miku from Vocaloid
Location - Oni-con 2011 Cosplay Contest
Photographer - Angelwing