At the San Diego Comic-Con last year, Image announced a huge crossover title, Image United, written by Robert Kirkman and featuring artwork by Rob Liefeld, Todd McFarlane, Jim Valentino, Erik Larsen, Marc Silvestri and Whilce Portacio. What's interesting is that each artist is drawing his own characters throughout the series -- so if Spawn, Savage Dragon and Shaft appear in a panel together, then that panel will feature the work of McFarlane, Larsen and Liefeld.

"The pages where we are all interacting are by far the hardest to pull off but the most satisfying," Liefeld said yesterday on Twitter. He also posted two "in process" images from the book. The first, from the layout stage:

And then one closer to completion:

Liefeld said he handled the layouts on the first issue, and Larsen will handle them for the rest of the series. "Originally the idea was that each artist would lay out an issue, but time restraints led to Larsen being the master layout guy after #1," he posted on Twitter.

This is a very unique project that will no doubt take a lot of time to complete, as the artwork travels to and from six different cities. For more information on the series, there's already a fansite that's collecting news and info on the book -- http://www.imageunited.info/.