I have already mentioned the Juge Bao series of French graphic novels. Nie Chongrui, the artist, uses an engraving technique that produces extremely detailed and impressive black and white drawings. The women in his stories are incredibly beautiful, which is definitely a plus.
Volume 4 (l'Auberge Maudite) has been available for a few weeks, which has been a good incentive to re-read the whole series. Recommended if you can read French (a good understanding of the langage is required as these are detective stories).