Pat, as part of your improvements, how about having a video section?
The girls could either be able to add it to their normal ad, or you could have a separate section for it

If the some of the girls are daring enough, you could even have a "XXX" section
I'm sure it would be popular!!!!

It would be a great advert for them (Just look at Marlena and co)

You could also have a "Hear my voice" section where they could just do a sound clip saying "come and see me boys"

Or even (and you can tell my little brain is working overtime here) A "Super Ad" section where they can submit a full page as kind of a story with multiple pics in it kind of like a web page
Perhaps you could offer some help writing it if they submit the pics (Perhaps paying more for the privilage)
Lets face it, a lot of the ads are dry, boring and unimaginative, just a pic or two and a list of favourites

Finally, you really should have sticky for "Thinking of booking an escort - the dos and donts"

Have a great day!