A Mexican artist who goes by the name of Clier has a Tumblr which is full or scary and gruesome illustrations. His blog which is called Smells Like Death features a collection of old magazine portraits in which it looks like he has over done with a black pen.
The doodled-over pictures in Smells Like Death (which used to be simple and beautiful pictures) have had morbid makeovers. The art by Clier may not be for everybody, but it is interesting to view.
Morbid Makeover Portraits
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Morbid Dismembered Photography
Gory Undead Portraiture
19 Deadly Illustrations
49 Battered and Bloody Features
Morbid Photo Spreads