I learned how to make the colors lighter and darker and make the shade i wanted. I also learned how to blend different colors together so its not just to random colors next to each other. I learned how to make different designs like fur, rock, and fabric.
To make brown you mix together opposite colors on the color wheel. To make it lighter you use white and darker black or the darker color you used to make the brown. As you make the skin tone lighter you add a little red to make it look kinda pink so it looks like real skin.