I am going to add my 5C worth, before going mum on the issue, as since Guitstik has volunteered his efforts, I feel it only fair that he be allowed to make the right judgement calls without being pulled from pillar to post.
If this was to become a once a year offering I would really not like to see this become an elitist book. My personal feeling is I would rather see 2 pictures each of 50 people, rather then 10 pictures each of 10 people (just pulling a figure of 100 pictures out of my head and showing each extreme). Yes, there needs to be a qualifying criteria and I also think that the images submitted should be vetted.
Anyhow, just my opinion based on what I have had to deal with in the past
Now, I better go and re-new my subscription (I let it lapse a few weeks ago…)