It is not that simple. Is your work "amateur" in all aspects except the model is doing it for money, or is it Playboy shot to perfection?
Solo girl can be from $250 set and video to $2500 for a set and a video, it can go higher or lower in some circumstances. This is the same for everything up to hardcore.
Barely Legal just offered us $2,000 for a non exclusive rights on a solo girl set. With the sales from the UK, EU, Net and the video it will clear the $2500 I quoted easily. We will also shoot the same girl for sponsors for $400 a scene, set and video. After we have sold her to all the magazines.
Content is like traffic, how much is a hit worth? From a CJ site or a review site.
So show some samples and you will get the reply you need.