Direction of Light in beautiful fine-art photography.
Front lighting, in which the sun is behind you when you take a picture, provides the most even kind of direct illumination.
Because it creates few shadows on the surface of your subject, though, an image produced by frontlighting tends to lack a sense of volume and depth. Hazy sunlight may soften this effect, but ordinarily it is useful only when you want to emphasize broad, flat shapes.
Infrared Afternoon fine art photography.