It may not be your best work, speaking proportionally, but you have an immense sense of details (the gloves, the little skull, the bats). The face really is quite good, as well.
Something that puzzles me a bit, though, is how you suddenly jump elegantly across many of the techniques I´ve seen you using so often before, when they would more seemingly fit well here. The hair, for instance, looks two-dimensional, with it being parted by a single straight line, instead of curving it along the head, which would seem more appropriate, IMO. That, and it seems slightly - if only very slightly - disturbed by the line going up her waist, combined with a strangely straight back (which I would personally have expected more curving inwards).
~MOSM~