I'd love to help, but pretty much I'd come off sounding like a jerk, and I really don't want to.
Basically, with the evolution of digital photography and quality of cameras these days available at every Cost-co or even on every Iphone, every Tom Dick and Harry wants to make a buck selling pics. Its a very difficult game to be involved in and to make a buck at. Thankfully I'm not in it for the money. I am lucky enough to have taken enough quality images to have peeked some interest along the way and its always exciting when someone is willing to pay you for your work. I wish you luck in your endeavor. Selling stock images is not as easy as it may seem.