Initially, when we started working with ciliary rows, we experimented, tried different techniques, mixed colors. There were a lot of experiments specifically on mixing colors. At first we did just one to one. For example, black, dark brown, black, dark brown and so on. Then we tried different lengths one to one, for example, blacks are shorter, browns are longer and so one after another. We even mixed lashes of different colors in one fan.
But in the end, there was an idea to make black short eyelashes on the bottom row and above them — colored eyelashes. And so that colored lashes don't mix with black ones, I decided to make colored lashes longer. That is, long colored lashes overflow the black border and create the effect of colored shadows. So you create makeup not only on the eyelid but "draw" with lashes. It turned out very impressive and beautiful, and then we invented a wide range of variations: a mix of three colors, steps, a gradient.
At that moment, when this idea came to my mind, I didn't see anything like that from other lash stylists. And now I teach this author's technique in my courses.