(click any image to enlarge)
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Sister-in-law.

Taken with a digital Olympus C3000.

High frontal "butterfly" lighting.  Lighting was done with two undiffused 500w halogen hotlamps. One light was positioned facing the white paper background down the middle and the other positioned high over the front of the subject.
Nephew.

Taken with a digital Olympus C3000.

High frontal 3/4 "Rembrant" lighting.  Lighting was done with three undiffused 500w halogen hotlamps.
High on the front left,  the key light is positioned so that an inverted triange of light appears under one eye. On the opposite side a fill light is postioned to lighten up the shadowed side of the face. On the lower right a light is positioned toward the paper background to produce a graduated transition from light to dark.  Colorized with Photoshop.
Brother.

Taken with a digital Olympus C3000.

High frontal "Butterfly" lighting kept in the same axis as the face.  Lighting was done with three undiffused 500w halogen hotlamps.  A rear light on the left grazes the side of the face and shoulder. (Because this light faces the camera, a black piece of cardboard must be used to shield the light from hitting the lens and causing lens flare).
Niece.

Taken with a Nikon N80 with a 35-105 zoom.

High frontal "Butterfly" lighting kept in the same axis as the face.  Lighting was done with three undiffused 500w halogen hotlamps.  A rear light right behind the subject highlights the hair on the left, seperating it from the dark side of the background.
Nephew.

Taken with a digital Olympus c3000.

Two lamps diffused through white umbrellas are positioned at the same level towards the face.  The third light is bare and is positioned toward the paper background far enough away produce a solid white.  This is the easiest lighting style to work with which is why I think it is so popular in portrait studios.
Nephew.

Taken with a digital Olympus c3000.

Same as above.
Newest niece.

Taken with a Nikon N80 with a 50mm 1.4 lens.

This is was taken as a high-key shot overexposed by two stops and underdeveloped.  I used a full apeture to soften all but the eyes.