Absolute master plus 50! ! How is this effect drawn?

Paint watercolors. It is to draw the outline of the characters by line drawing, then dilute the lines and strokes with charcoal powder to create a change of light and shade, and then paint them with watercolors layer by layer, thus drawing the three-dimensional sense of the characters under natural illumination and the soft texture of the skin. The color is elegant, the painting is delicate, and the skin of the characters is shiny and soft. This is similar to the traditional meticulous painting, but there is no meticulous painting.