Visual concept and overall composition is all right but can be improve and making it more 'dramatic'...like not having the girl back right on the wall but one of her shoulder side way forward and may be cross bow one of her leg a little. Try and raise her eyebrows a little and open up her eye lid more and last but more least, may be you want to repose her with one hand elbow up with clinging like finger poses close to her chattering teeth (have the mouth pull horizontally and open up a bit). I feel that an expression on her face in such a situation she is in is of paramount important. As for the wolf's shadow, it should not be 'translucent'. The shadow should be totally dark and preferrably not too harsh on the edges...mask the edges and give it a mild gaussian blur if post work is needed. Have to watch where the light are coming from especially this is noticeable from where the 'wolf'shadow falls on her in relation to her figure shadow...unless there is another lighting (like a street lamp) in between them. IMHO of course and hope its of help.