Aquarelle is a kind of painting method of mixing transparent pigment with water, which is called watercolor for short. Because the color is transparent, one layer of color can cover another layer to produce a special effect, but too much mixed color or too much coverage will make the color dirty and the water dry quickly. Therefore, Aquarelle is not suitable for making large works, and it is suitable for making small and fresh paintings such as scenery.
Aquarelle pigments are easy to carry and can also be used as sketch materials. Compared with other paintings, Aquarelle painting pays more attention to performance techniques. Its painting method is usually divided into "dry painting" and "wet painting".
Source: @alexeyvys