These are character studies for an adaptation of Edmond Hamilton's "City at World's End" I started about a million years ago. Left to right, Kenniston, the Earthling hero, Gorr Holl, an alien engineer from Capella, and Varn Allen, a human female from the very distant future.
As you may know, "City at World's End" is my favorite science-fiction novel, and one of my favorite novels, period. Those who have not had the pleasure of reading it can do so here:
http://www.xooqi.com/iboox/xo_0069_hamilton_cityworldsend.html