Multiple stripes of different colors of crackle polish with the top layer being a full coat of black crackle. The same effect could be achieved by using regular polishes to do stripes on the nail then topping off with the black crackle.
If you are going to take the time to paint your nails, you may as well do it with style. These “super freaking” cute nail designs will give you some ideas and impress you with their creativity. I think the all “nailed” it.