Want to twist your plain nail polish for a chic, pop-up two-tone manicure? Follow this super easy nail art guide! THE TWO-TONE NAIL ART, HOW TO DO IT? This is the easiest nail art technique to do. You don’t have to be an expert at manicure to indulge in this fantasy on your nails. In fact, it suffices to have the necessary material: a base before the varnish to protect the nail from yellowing, 2…