On step #1 I layer on the cool zone process red, pink and white colored pencils over light blue artist crayon (see more on "layering" on previous post). I use the side of the pencil, not the point.
After moving the paper to the warm zone I start blending with a paper stump. Here, again, I'm using the side, not the point, and make small circles as I blend. Step #2 shows you the blending in progress.
On step #3 you can see the end result: a very smooth and flawless color gradation. This technique will allow you to blend a large area in a very short time.