Something that everyone should check out.

[SCMurphy]

ADA had a 'training' class last year. They posted the class on their website. The end of the class was an Iwagumi Challenge. They posted the pictures of everyone's tanks and of Mr. Amano's corrections of the tanks. If you had questions about perspective in the aquarium using rocks you need to look at the contest results.

http://www.adana.co.jp/training2008/en/index.html