So my friend really recommended this programmed called Krita (http://krita.org/). It fully supports the Surface Pro 2's pressure sensitivity. So here I experimented with almost all the tools; pencil, ink brush, paint brush, pen, and smudge. A confession, originally the whole picture was supposed to be done all in pencil but due to massive frustration I started trying other tools to cover my mistakes. Eventually I inked it and then I painted in the eye ball. The flesh around the eye is a mix of pencil, ink, and pen.