Her head is a bit cut off- might try rounding it and bringing it up a bit. Also, her nose is a bit big for her face, and her mouth could be moved up a bit once the nose is smaller.
I love how you did her necklace, and her cleavage is, uh... mesmerizing. XD To say the least.
I've never been all that great with heads.
I'll work on it.
Blad you like her necklace.