My illustration instructor once told me that pink was the perfect match with black. I agree with that but I think black can go well with every color anyway. It's the best background and typography in black always looks cool. But since it also looks too strong and generally gives negative feelings, I rarely use it in my job.
I just have a belated thought that what if we have black and white candy wraps that have hidden colors inside for Halloween Tricks or Treats? That must be fun for kids. Maybe, There's already been those kind of candies, I don't know :-P
I enjoy drawing this but, again, I think the details look just too much now :-(