Oh man. Dem udders. But in all seriousness, very great, I love it, and all it's curvy cow related goodness. Very appealing, and of course I'd love it no matter what probably since I'm biased toward cow girls anyway.
I think this is quite good, but her head is slightly too large, and there's no background to give this context. Her eyes might need some depth. Overall, this is a relatively realistic figure, and for that I am very grateful to have seen it.