I like the hair but in my opinion the shape of it should be more natural because I think it looks like the shape of the hair you get on barbie dolls but that's probably just me. It's shaded REALLY well though exept as antimaie said it looks like it was very close to being pillow shaded.
If you want to check out some tutorials then there are some great ones at Watermelon Bubblegum
and also in the tutorial forum.
Sorry I guess I'll just shut up now. *sticks tape over mouth*...