I agree with evaunit. You said sewing wasn't your strong point, and I think the judges saw that. Not saying it's not a good costume, but in the context of a competition, I think it needs some work. Yeah, lights are cool, but those alone shouldn't get you an award.
Matsuricon/Glass City Con/Youmacon Cosplay: Armin Arlert/young Armin (Attack on Titan); Ultimate Madoka (Puella Magi Madoka Magica); Fem!Masky (Marble Hornets)