The aim of the exercise is to fill the pattern with warm and cool colours and see what happens.
What happens? There are too many variables to actually be able to keep track of what you are doing, that's what!
There are so many possibilities!!
I have just done a few so far, all on the computer. I have copied my design and printed it out so that I can use pencils or paint, I just have to find the time. And then decide what variations I want to do.
I tried to keep the colours to similar intensities so that the only thing changing was the warmth and coolness. Varying the intensity of the colours will make even more variations possible. Too overwhelming.