Looking at a close-up you can see the gold, silver and copper metallic squares. There about 7 or 8 other colors in the wall also. I mixed them up and over painted here and there pretty good. There was no plan at all. The wall was done in a totally random fashion.

What is interesting about that is even though you have a 'mechanical' layout with the very defined grid work of the squares, the random application of paint colors/metallics creates a certain looseness, an inviting organic feeling.