I took a first listen to Fleet Foxes' new album "Crack-Up" while making this drawing.

Started with a framing layer of graphite pencil. After I placed the central figure, I started sketching within the streaks of pencil shading. Reinforced the lines with pen & ink, tried out getting a mineral iridescence with colored pencils, and darkened the "obsidian" with a permanent marker.

The result was something rocky.