This painting is on a 1 1/2 inch gallery wrapped canvas painted on the sides. It is linen canvas and so has a wonderful texture to it even when using transparent colors.
In reality there are only 2 colors. Transparent orange and lapis lazi blue. This blue seems to disappear on the canvas and I thought with the mood of the weather that might work out well. It is a very expensive paint so I don't know that I would use it on a very large canvas without a lot of medium.