Early in Alex Ross' career, around the time when he was still doing Terminator: The Burning Earth
For this image he used the Queen IIEventually Alex was given the chance to paint the JLA poster he was pursuing, sadly, the editors made him paint the JLA they wanted, that meant, the team as it stood in 1994, so against his will, he had to include guys like Steel, Kyle Rayner as Green Lantern, Catwoman and the long-haired versions of Superman AND Aquaman. As you can tell, his lack of effort is visible there are too many shadows and there isn't much detail in the characters. overall, the work looks a bit sloppy. This is probably Alex's least favorite painting. Regardless of its shortcomings, this poster is rather hard to find.

With the success of Kingdom Come, Alex was able to take control of what he did or didn't do, so he did the lithograph below, as retro as he wanted and what could be more retro than the original 1940's heroes, with their original costumes and all. This litho is extremely gorgeous as well as hard to find and if you can find one, expect to pay around US$3000.
With the success of his and Paul Dini's series of oversized books. This poster was released to promote the last two of these books which focused on the JLA, Secret Origins and Liberty and Justice. I really enjoyed this poster because it looks great wether you hang it horizontally or vertically. This one is a little hard to find yet isn't too expensive.
This latest entry into the JLA posters was used to promote the 12-issue maxi-series JUSTICE










