Coloring Book Illustrations

I am looking for talented illustrators to create several illustrations for a coloring book I am designing. I have a specific theme in mind, and am looking for individuals who can accurately execute my ideas. I am in need of 55 illustrations, so whoever takes on the project should be prepared to produce multiple works. The chosen artist must be able to draw to a realistic level while still being able to capture the cartoonish nature that I am looking for.