The most interesting thing this year I have learned so far about portraits is that there must be tension in the photo. This could either be to unsettle the subject with actions and words, or the subjects desire to control the situation in that photo that they are in. I found this information on http://www.jmcolberg.com/weblog/2008/02/what_makes_a_great_portrait.html under the column of Amy Stein.
The portrait photo that was taken by: Akbar Simonse
<div xmlns:cc="http://creativecommons.org/ns#" about="http://www.flickr.com/photos/simeon_barkas/1369552543/"><a rel="cc:attributionURL" href="http://www.flickr.com/photos/simeon_barkas/">http://www.flickr.com/photos/simeon_barkas/</a> / <a rel="license" href="http://creativecommons.org/licenses/by-nc-nd/2.0/">CC BY-NC-ND 2.0</a></div>
This photo can be seen in: http://www.flickr.com/photos/simeon_barkas/
This portrait photo shows the tension in the mans face. I think the photographer has made it so he looks unsettled and worried about what will happen next. It leaves the person viewing the photo wondering what he is thinking.