Applied art commercial art print illustration by Norman Duenas titled "A Butterfly Effect." I really love the artists combination of nature with the human figure/skull and the depiction of a clock. It gives a great sense of the passage of time.
Gridded Self Portrait. This is professional, of course, but what a great idea for middle schoolers to grid two pictures - one self portrait and one of a mediaeval creature and replace some of the squares from some of the creature.