If you are looking for the ability to do facial expressios you really need to get Mike2, Vicky2 and Stephanie at the very least. Will you be paying the artists for commercial use? It seems you are not a regular here or you would already have an idea of which artists have the look you are going for. The pleasure of being a part of your project, I don't believe is motivation enough to get people jumping here. Maybe I am wrong, but I would skim the textures in The Marketplace and freebies and try direct contact with artists whose work fits your vision.