Robert Sammelin's comic book cover for "Sleepy Hollow" conjures a world of eerie contrasts through a controlled palette. The artist uses restricted flat color, starkly silhouetted trees against a misty sky, and the dark coat of our protagonist to bring out a very particular mood. The headless horseman, emerging from Ichabod Crane’s chest, is rendered in blood-red tones, a bold move that grabs your attention and is a great visual metaphor. The artist uses sharp, clean lines to construct the figure of the horseman, giving it a sense of urgency. It's like he's trying to escape the confines of the frame and the character holding him in. This reminds me a little of Yoshitaka Amano's character design work, both for its elegant line work, and its attention to tone.