Interesting book called Demons:visions of evil in art by Laura Wood and Will Steeds (ok some transgression away from the skull thing). Had to make reference to this1925 illustration entitled Faust and Mephistopheles by Harry Clark . Harry Clark illustrated 1925 edition of Goethe's play Faust.
Quote from Demons:visions of evil in art "Clark has given Mephistopheles an elastic form to emphasize the deceptiveness and ever changing nature of the devil - the literal 'shiftiness' of the evil one. Faust is confronted by the tantilizing spectacle, conjured by Mephistopheles of a half-naked woman".