Hot with capital 'H'... this has to be one of the sexiest, proper demonic demon ladies I have ever seen in my entire life. The drawing style is good, the shading is wonderfully done, the details and demonic 'accessories' (including the horns, tail, legs and so forth) are very fitting with the person and give her a dark and scary appearance, while at the same time also making her beautiful.
A lethal weapon of Hell for sure.
Well done, 4 1/2 stars from me. (A little more precise and rough shading on the feet would have made it 5 stars, just as a side note :) )