I'd have to echo some of what Ian and Patti have already said. If the surfer can't find what he likes easily, then the actual quality of what is available is rather moot. I think the biggest single failure of sites is in ignoring good navigation. I don't mean fancy, but GOOD.

Get a header happening (ideally using a php include so you can quickly update your entire site navigation with one html upload) that has a home link, basic gallery index links, bonus features, and so on. And take me out of a gallery back to where I was at and don't force me to backbrowser or click through 30 fricking pages of indexes to get back to where I was. If you want to show a large pic, description and several small images for every single gallery you have in a reality style format - fine - but give me a dropdown of all the index pages that lets me fast forward!

You might have the most unique content of the hottest model(s) on the planet, but frustrating your members with a poorly designed navigation system is simply unforgiveable. I am in a lot of sites, and it's just so frustrating to start moving deeper into the content and there's not even a home link to get me back to the member page. I have literally had to close a site and log back in. That's just nuts. :boo:

And before someone comes along and mentions that this is a technique used to overshadow a site with minimal content ... I already know why it's done ... but my argument is this: if you have quality content, you don't need to "cover up" a lack of quantity.