You know how in art class one of the main principles of drawing realistically is shading an object to establish its shape and contours? The same idea applies to makeup application. While our faces have natural dimension and contours, their hills and valleys can be further emphasized with strategic contouring via highlighters and bronzers.
Contouring allows your face to look more multidimensional and sharp. Watch this tutorial to learn how to sculpt your face to perfection using highlighter and bronzer.