Mark Powellis a London-based artist who journeyed on the road less traveled by choosing to draw his portraits on the backs of old envelopes. These envelopes traversed the European postal system more than a century ago. Mark uses nothing more than a standard Bic Biro pen to create these delicately rendered portraits. Most of his portraits feature the elderly wearing rather unusual expressions. He also has one with a hovering hummingbird and another with an adorable owl.
Have a look at Mark’s website.