Jim Lee's cover to Justice League #6

With the publication of Justice League #6 coming up next week, Jim Lee took to the internet to comment on the issue, the conclusion of the first story arc that tells the tale of the uniting of the group in DC's New 52 continuity. He mentions the cover specifically and what his inspiration was for it.
“I wanted to create a cover which resonated with what I consider to be the most classic Darkseid story – namely the Great Darkness Saga – so that entailed the Justice League bowing down naturally to the power of Darkseid. Except of course Batman who, despite not having powers, fights with all his strength in defiance.”
Here's that cover and following it is the issue of the Legion of Super-Heroes and the Great Darkness Saga storyline that Lee said was his inspiration.