I had two colours of composite decking that I got for free (about 50 square feet--see previous post), and did the cantilevered bay window area with those two colours, then went to Habitat for Humanity and got another 20 square feet for a really good deal (read: colour three), then bought two more colours at Home Hardware, for a total of five colours.
Each piece was pre-drilled to fit the 12-inch joists underneath, then screwed into place. I placed everything randomly except for two pieces (the longer super dark ones) as if I chose a design, I would be continually deconstructing it forever into infinity. I thought the perpendicular directions might look funny, but I love how it delineates the two areas, and I love that the bay window area is darker than the area in the foreground, further differentiating the areas. And... just so happens that the centre board is centre of the house, which satisfies my eyeballs!
I love that my floor has a story! I also love that it will last forever, and can handle dirty shoes and feet!