Beauty is commonly described as a feature of objects that makes these objects pleasurable to perceive. Such objects include landscapes, sunsets, humans and works of art. Beauty, together with art and taste, is the main subject of aesthetics, one of the major branches of philosophy.
The number one criteria for beauty according to scientists and researchers comes down to symmetry. A beautiful face exhibits perfect symmetry. One side mirrors the other. Think proportionate when it comes to the body and face. The eyes should be proportionate to the head and face.