This is lovely ! Today's Daily Nail Art is this Converse Sneaker design by suga-skull. As you can see, you can modify this style to fit any color scheme of your choosing, or go all out and make each sneaker a different color.
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.