This started off as a simple face sketch. It looked cool enough to add color. I snapped a photo of the sketch and brought it into Illustrator. For anyone that works in vector art, Illustrator added a width tool to CS6. So instead of having a fixed 1pt stroke, the width tool can make the middle of a stroke wider than the ends. This gives you the look of a tapered brush stroke. A word of caution though: If you use live paint to drop color, do that AFTER you adjust your stroke width.