I think your webcam page should be the homepage. Lots of pictures are more interesting than the equivalent of a Facebook news feed, you know?
I gotta say though, it'll be impressive if you can pull off content hosting AND streaming cams at the same time. If your servers can handle that and still have a large amount of models working with you, it'd be something most sites fall flat on.
One big issue I see, when I clicked on a preview of a video, this came up:
Noooo don't do this. Please. It's a bad idea for you. Nobody wants to link their porn to their social media. And Google Plus shit tries to sync up everything under the sun. I realize some websites think it's trendy to have all their pages connect with Facebook and Google and bullshit, but there's nothing that makes me run away faster more than a "Sign up with Facebook!" popup.
As far as your community goes, I'd be wary. How will you deal if there's a dispute between a model and member about content or a show? Will either be able to post in the community and get people on their side? Community can be great, but there's a downside to it. Will you moderate the community aspect to make sure people get along?
Your FAQ says models can get up to an 80% cut. How is this feasible? Especially when you're spreading yourself thin and offering content, live shows, and physical goods? Man, I think you bit off more than you can chew.
You issue refunds under "exceptional circumstances." What circumstances? Is it case-by-case? Who absorbs that cost? (FYI: if it's the models who get hit with chargebacks, you won't have any models.)
When it comes to physical items, you say "we offer shipping through multiple mail carriers." But... you're not the one shipping the items if it's a model's item, right? Like if somebody wants to buy our panties, we won't send them to you to send to them, will we? How will you keep on a model if she hasn't shipped an item in a timely manner?
"We can change this contract as we see fit, so you should probably check it now and then. You don't like it? GTFO." At the very least, you need to alert people when you've altered a contract that they've signed. If I was a member that'd be a giant "NopenopenopeAWWFUCK NO" clause.
Also, your Terms & Conditions, do models fall under the T&C as members? Users? Because you have a non-compete clause.
Which is always kind of sticky. If you mean you don't want models to take your ideas and go elsewhere, I get it. At the same time, you're choking yourself off if you mean it for any user of the site. As in "if you sign up here as a member, and decide to go, you promise not to make a website for 2 years that's like ours." Hell, even models are usually wary of non-compete clauses. As in, are they allowed to go cam elsewhere, or make their own site? If your T&C isn't clear about that, nobody's going to bother.
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I've gotta say, it seems to me like you took the best ideas off all the other top sites, threw them together, and didn't fully think this through as far as feasibility/expansiveness of the site goes. I once had a tri-tip steak that looked delicious and amazing, but I nearly choked on the first bite because it was too big. Sensible bites, man. Sensible bites.