When we start illustrating we usually have a color palette in mind. After we are happy with our final pen illustration, we actually layout a color palette to use.
We may not use all of the colors that we lay out, but it is a good base to work from. Sometimes we will make a few copies of the illustration so that we can see which colors from our palette we are going to use in our final draft.
After our illustration is complete we scan it in for formatting. We will share more of this process with you soon!