I can't believe how hard it is to find good aquarium pictures online. I was looking for something Amazon, with lots of driftwood and plants, and few rocks. I think this would make the best-looking freshwater tank. It would also balance out the "rocky" look of the saltwater one.
I noticed the same, CephaloP. I found this site with some nice photos of planted aquariums. Maybe this one comes close enough to an Amazon biotope aquarium. (Just in case anyone wonder what they look like.)
http://www.aquabotanic.com/gallery.htm