As you keep promoting your site, your user base will grow, and so will your supply of pictures. Watch out for doubles, and as you get more and more pictures maybe categorize them by popularity (#of votes) or age or amount or of clothing. Maybe have a status page showing how many pictures and number of new submissions in the last week. Eventually maybe even expand your one vote system to having votes for different features on the person.
I don't know these are all just random ideas.
Wrote it myself, uses a mysql backend so all those things you said about votes and doubles won't happen<unless they are at 2 different URLS> Also, the same IP cannot vote for the same picture twice in a 48 hour period and I keep time stamps, although until the database is larger, advertising how many pictures I have wouldn't be much of a promotion.
I also love the idea of voting on the features, I jotted that down, maybe after I finish what I am working on now, I will start on that, it will take about a week or two to get to, but def. worth it. It would keep people there longer which as we all know here is a def. plus.
Would a forum interest anyone? Or would a site like that having a forum be kinda rediculous <sp?> since they came to see chicks not type?
Oh and a little background, as many know here <I think> I run a couple of freewebhosts and started this to kinda get away from it all, I do it in my free time and it is a totally laxed environment unlike freewebhosting wher eI get 9000 emails a day asking questions that I just can't beleive people would ask. and blah blah blah... I am rambling because it is 2:37 in the morning and it is late...
goodnight....