It all depends on the experience, how well you can project yourself to the camera and other factors...
You can look at the
Workshops, Studio/Model Shoots for a rough guage of how the shoots are priced at.
I would suggest tat you consider taking up some TFCDs for a trial and also get some experience in front of the camera. You can expect quite a few photogs to look you up once you do so though, so choose carefully and be wary of the "wolves"...