Every colors are made by illustrator Sui. She realized that expressing color, like Claude Monet, van gogh and Giorgio Morandi, is complicated for those who are not familiar with mixing different colors. And then, after a long period of research, she has finally come up with a best paint set based on 4 primary standard art philosophy. 1. Since Gouache paints become duller as you mix more, reduce the times of mixing colors. 2. To be able to express variety of color with only 12 colors. 3. Create a color mixing recipe so that anyone can easily create colors. 4. The 12 colors themselves should be lovely. Therefore, anyone can easily create a variety of colors with just two or three combinations. The color charts and recipes that come with the Sui Gouache set will help you learn to make various colors. Even if you mix the two colors along the color recipe, you will get a beautiful color design, but each of the 12 colors has a uniqueness that is not common to you just by their original color. I recommend you use a small amount in the pallet because it has excellent color expression even with a small amount. That makes the paints best as the travel watercolor kit. You may not put them on paint palette with lid to keep from dryness. It is water-soluble, so it can be re-moisturised by adding water even after drying which makes modifying the work easy. Dry Your work over night for full matte texture.