Seemingly nothing more than your typical, rich, spoiled boy, Killua is actually a ruthless killer who can be extremely violent and bloodthirsty. He was tortured since birth, conditioning his body to withstand poison, electricity, and pain. Despite the troublesome childhood, he can be cheeky and mischievous. And he loves his sweets.
There’s something odd about this picture. I think someone threw a yellow tint over the original image, but I’m not entirely certain. It’s a very nice cosplay though. Great work!