This video is greatly sped up. Be sure you take your time and be mindful. The first part is making an achromatic value scale and the second part is making a chromatic value scale.
One of our first assignments in color theory class is to create a value scale. Here are a few tips: Use clean brushes, change water often, use clean mixing tray, don’t use too much water and to avoid streaks, mix enough paint to apply two coats of paint perpendicular to each other.