The orange stands for rocks, the yellow stands for the sun and sand, the blue stands for the ocean and the sky, also it is on the side because Australia is a Island surrounded by water, the green stands for land and nature and the white stands for peace. All of the colours when mixed together = black, and black stands for the original owners of Australia's skin colour. The southern cross has eight points because Australia has six states and Australia has two territories, I also have the southern cross because everyone can see it in Australia and the southern hemisphere.