The Antipodes Project, of which I am a member, has just finished a large piece entitled "A Transitional Moment". This piece is made up of nine 11" x 14" panels and consists of work from 5 different artists.
A Transitional Moment - http://bentolman.deviantart.com/art/A-Transitional-Moment-127029716
The artists -
Ben Tolman http://bentolman.deviantart.com/
David Mack http://docteurqui.deviantart.com/
Greg Kanteres http://syddartha.deviantart.com/
Ryan Thornburg
Rens Ink http://rens-ink.deviantart.com/