It is obvious that light plays a major role when it comes to any type of portrait. Depending on the type of the light you use, the appearance of the portrait will differ. To get a beautiful and awesome light effect on the portrait, you should set the light above the subject. However, this doesn’t mean that you have to place it directly above the subject; such setup will create unnecessary shadows under the eyes. Instead, we suggest you to place the light above and front of the subject’s face. Such setup will direct an even light on the face exposing all the important features. In other words, just place the flash or the strobe elevated behind you (the subject should face the flash).
When it comes to natural light however, we don’t suggest the subject to face the sun. Instead, you should let the subject turn his or her back to the sun. Then, you should spot meter for the eyes of the subject. We call this backlighting.