Do we want the contests to be about the photography or the modeling? I think there are opportunities for one or the other, or both in a given contest,
BINGO! Hit the nail directly on the head. Obviously the contests will have to be primarily about modeling. Topic and allowance leeway would be determined by the contest moderator.
Unfortunately there is no pat answer for the question. The answer will have to come from the membership itself. Truly it's the memberships contest, they'll be the ones submitting the photos, all the admin can do is moderate, see that the accepted guidelines are followed and that fairness is observed, then put enough challenges into the contests to keep it interesting. That is not as simple as it sounds.
For example: There is no way I'd be interested, or that I would take a photograph of something I didn't want to, nor would I post a photo if I didn't like the rules. If enough membership had this same attitude then future contests wouldn't have a very long life.
So that said it then follows that the membership who participate in the contest will be the ones setting the standards that they will have to live with. Forum admin will see that the rules are followed. The rules have to be flexible enough to allow the contest moderator leeway to keep interest peaked.
If this is done right, with acceptable parameters set, the photo contest has the possibility of a very long run on the forums.
One way to establish this is use all the suggestions posted in this thread to help the contest administrator do just that.
So post your likes and dislikes So far there have been a lot of good ideas.
Thank you for your participation
Cheers
Willis