As some-one who studied art all through school and was accepted into art college in my younger years (but decided to hitch-hike across Canada instead - but that’s another story) my jaw dropped in total admiration with I saw the piece art shown below in a post this morning

So what you say .. it looks okay. Well how about the fact that it was done with nothing more that a blue BiC pen.

Original Artist: Juan Francisco Casas

Cred: Boing Boing