A lash map is more than a technical plan. The position of its longest fibers changes the balance of the eye, and with it, the mood of the entire look.
A natural map keeps the rhythm soft and even. A doll-eye map places emphasis at the center for brightness and openness. A cat-eye map moves the visual weight outward, creating lift and a more editorial finish.
Start with the feeling you want, then choose the map. For everyday polish, keep the transitions subtle. For evening impact, increase contrast between the inner and outer lengths while keeping the band comfortable.