One of the classical approach's to portraiture is when the background drops off to Black. It's 5+ stops as described by the zone system scientist Ansel Adams.

http://www.dannyzapalac.com/files/gimgs/68_susiedreprewedzapalac-31.jpg
http://www.dannyzapalac.com/files/gimgs/68_susiedreprewedzapalac-22.jpg
Neil
Age 39
http://www.dannyzapalac.com/files/gimgs/68_tommychongzapalac-392.jpg
Tommy Chong
Age 75
http://www.dannyzapalac.com/files/gimgs/68_francisportraitzapalac.jpg
Francis
Age 97
http://www.dannyzapalac.com/files/gimgs/68_susiedreprewedzapalac-60.jpg
Andreas
Age 38
http://www.dannyzapalac.com/files/gimgs/68_susiedreprewedzapalac-59_v2.jpg
http://www.dannyzapalac.com/files/gimgs/68_seandannyzapalac-73.jpg
Sean
Age 6
http://www.dannyzapalac.com/files/gimgs/68_seandannyzapalac-75.jpg
http://www.dannyzapalac.com/files/gimgs/68_seandannyzapalac-77.jpg
http://www.dannyzapalac.com/files/gimgs/68_susiedreprewedzapalac-53_v2.jpg
http://www.dannyzapalac.com/files/gimgs/68_levis501dannyzapalac-612.jpg
http://www.dannyzapalac.com/files/gimgs/68_levis501dannyzapalac-57.jpg
Jimmy
Age 59
http://www.dannyzapalac.com/files/gimgs/68_trainh2ozapalac-41.jpg
Adam
Age 38
http://www.dannyzapalac.com/files/gimgs/68_gingerlillydannyzapalac1.jpg
Kahili Ginger Lilly
Age 30 Days
http://www.dannyzapalac.com/files/gimgs/68_gingerlillydannyzapalac2.jpg
http://www.dannyzapalac.com/files/gimgs/68_gingerlillydannyzapalac3.jpg
http://www.dannyzapalac.com/files/gimgs/68_gingerlillydannyzapalac4.jpg
http://www.dannyzapalac.com/files/gimgs/68_peoplesdannyzapalac11.jpg
Kinley
Age 6
http://www.dannyzapalac.com/files/gimgs/68_susiedreprewedzapalac-39_v2.jpg
Jeff
Age 40
http://www.dannyzapalac.com/files/gimgs/68_susiedreprewedzapalac-40.jpg
http://www.dannyzapalac.com/files/gimgs/68_seandannyzapalac-3.jpg
Sean
Age 7
http://www.dannyzapalac.com/files/gimgs/68_bikendannyzapalac-9.jpg
Chris
Age 34
http://www.dannyzapalac.com/files/gimgs/68_susiedreprewedzapalac-77_v2.jpg
Nate
Age 39
http://www.dannyzapalac.com/files/gimgs/68_tomportriaitzapalac.jpg
Tom
Age 67
http://www.dannyzapalac.com/files/gimgs/68_susiedreprewedzapalac-1_v2.jpg
http://www.dannyzapalac.com/files/gimgs/68_susiedreprewedzapalac-30.jpg