Studio Lighting Techniques

This gives the effect of the subject having little to

 no shadow, and the background is pure white.

This gives the effect of the subject having little to

 no shadow, and the background is pure black.

this gives the subject light shadows on one side of the face but also seperates the subject from the background (black) with the honey coombe snoot.

this gives a darker more serious quality to the image, black background and a contrast between the highlightsto one side and the shadows to the other.

This gives the effect of deep shadows over the face yet high lights to the side of the head.

this gives the effect of splitting the subject into highlights and then deep shadow.