Really cool! On the cell shaded render - is there any way to increase the amount of shading? Like it doesn't really pick out many features in the renders you showed, such as the cleavage or much detail on the face. I appreciate that the insperition they are as featureless, but I think it might look a bit better if you could see maybe a tiny bit of shading on the nose and the cleavage especialy. Though it might not but if you havn't toyed around with that...
Anyway, the illustration is really cool and I do think it would work very well in motion, though I imagine the hair moving a lot.
If I sound a bit negative, I am not at all I think it is ace!