Eh, this is a bit mediocre. Her posing is way off. Torso is too short -- should be some serious rear end in the back but it looks like she got squashed. Hands don't match and look a little deformed, esp the disproportionate fingers and knuckles. Breasts should hang a bit lower and more forward. Head doesn't look like it's attached to the neck. Is there even a neck? Shadowing looks like fuzzy gradients, and there's really no texture to the hair at all. Ears are also wonky. Study realism a bit more. You've got good ideas, but the perspective and lack of detail is killing you in places.