Watercolors are non-covering colors, soluble in water, composed of natural pigments and gum arabic or water. The main feature of this tool is its transparency and brightness, whereby the different tones are superimposed: to create the desired tone it is diluted with more or less water and it is not possible to make corrections on what has already been done. It is important to use soft brushes and thick, rough paper as it takes a lot of water to dilute.
Therefore the technique of watercolor is to paint in glazes, the dark over the light.
The sheets used are Fabriano 6 of cotton and it is generally used to give the stain effect.