Photographic Portrait Prize 2007 - The Lowry

I went to the Lowry Centre today to catch the Photographic Portrait exhibition, which closes this weekend. And whilst I found it quite enjoyable I do have mixed feelings over whether I enjoyed the exhibition or not, maybe it was my own fault for expecting something slightly grittier than what I saw, my preconceptions being led in particular by this photograph

Portrait Prize winner Joseline Ingabire with her daughter Leah Batamuliza, Rwanda, from the series Intended Consequences: Mothers of Genocide, Children of Rape, by Jonathan Torgovnik © the artist.
I suppose I was expecting portraits that told a story about the subject, but I found many were simply portraits of children who were in some way related to the photographer, that appeared to have been used for the photo as they were readily available.. or again, maybe I read too much/too little from the snippet of information on the descriptions.
The photos I did find very striking included Alex Hurricane Higgins by Michael Donald (albeit displayed in a rather odd position in the gallery) and Alice & Fish By David Stewart. A small sample of the finalists can be found on the National Portrait Gallery website.