Sketching a Human Skull in Ink

I hope you enjoy watching as much as I enjoyed drawing. This sketch is done with a Pilot Parallel Pen and black ink. These pens are normally used for calligraphy and so they have a broad flat tip or nib. This allows for some unexpected marking as I work. I did not do an underdrawing in graphite, just attacked with the pen.
Let me know in the comments if you would like to see more videos like this.