I would have to say that at first glance this is very heart chilling. But I'm usually a detail hawk with everything so I decided to run through the things I noticed. The first thing was the repetition of the wolves. Perhaps if there was one that was different it wouldn't look that way. The other was her fingers, perhaps if she had long nails it would give it more effect with her clawing into the dirt. I also noticed that the moon seems to be in front of some trees. I can say that yes it's a bit hard to make it look like it's behind so I can understand that you did your best. Then there was the hand that was moved back a bit and the knee that was more inside of the hood, there should be some more shadows or at least darkened a bit. The thing I did love about this was the shine off her skin, it is beautifully done and her hair reminds me of fur which is a great effect. With the wolves, it's magnificent how you have them coming from all sides and even far in the back, wonderful detail.
This totally reminds me of a twisted Red Riding Hood. Brilliant.

Please don't take my critique harshly...I'm not a great artist by far, but I am a little nuts when it comes to detail.
I hope this helps.