Actually I like this one a lot. Haven't seen Sin City yet (shame on me), but I am familiar with Frank Miller's work. This is not a blatant copy of his style though, there have been many artists who have used these stark light-dark contrasts before. The cool thing is seeing something like this being applied to your drawing style. These experiments are always interesting, like that one time I did a lino-cut of Kitzalia and Maryke. (which actually also was an experiment in pure black-white shading)
Really cool work! 🙂