Welcome to dA!
First things first - Thanks for the already great gallery of high quality stock images. The artists and manipulators here thank you. though you might want to clarify your rules a bit, and make sure to separate your stock images from your artistic photography. A little more headache, yes, but it'll save you much more in the end. Also, while most here try to be professional and respect the photographers and models, unfortunately some do not, and a clear set of rules concerning your material can go a long way toward keeping all creative parties happy. Marcus Ranum, whose stock account can be found here
[link] has a pretty clear-cut and non-constricting ruleset. We're not idiots, but once again it'll help keep everyone happy and help avoid abuse.
Sorry for the mouthful. I just like to see everyone get off on the right foot so that we don't have the all-too-often situation of people not playing well in the sandbox, resulting in the inevitable photographer/model/both pulling their stock materials and/or leaving dA altogether. Stock photographers are always needed and greatly appreciated!
Rich