I don't know review sites, but I can offer my observations.
I don't know how much traffic you've got, but don't be surprised if it takes many thousands of hits to your site to get few hundreds of hits to a sponsor to earn one or two sales here and there.
For a review site, you don't have many reviews. Also, I don't know what to expect on the sponsor site, nor do I get to know the models with your descriptions. They're pretty bland, actually...
"The girls hot... here's a few galleries... check it out..."
As a review site, you're supposed to tell me every intimate detail I should know about the site. Everything from content formats, quantity and quality, to exactly what the model does on her site. This is really important!
If the girl loves talking dirty to her man before she starts fucking him silly, that she squirms when she's about to have an orgasm, tell me! Tell me everything you know about her! As a horny surfer, I love reading stuff like that. Makes me feel like I'm getting to know her, and it makes me hungry for that model, and her alone!
Again, I've never done a review site, so don't think I'm an expert. But that's the biggest thing that stands out to me.