Through all phases of project #4 (chromatic Studies, muted Studies, and prismatic studies), I realized to understand them well you should know two things, they are value and saturation. My understanding to saturation is pure and intensity of the color, and value means lightness and darkness of the color. After memorized these two artistic vocabularies, they helped me better to understand the color mixing since I started painting. I think the most challenging step was when I had not enough color for my compositions, so I had to mix it more, but it is really hard to mix a color to be exactly the same like the color I mixed before. Each of them took me around 3 hours to finish. Since after the project #3, I’m glad to have another chance to work on painting physically, I can feel the improvement of my painting skills, and also the knowledge of color mixing.