选择基底：水性还是油性材料？

When choosing a substrate, it is important to consider whether it is suitable for water-based materials or oil-based (dry) materials. Water-based materials require the substrate to have a certain degree of absorbency. After absorbing moisture on the surface of the substrate and penetrating it, it will bend and deform. Therefore, the thicker the paper, the less likely it is to bend and the stronger its load-bearing capacity. After determining the substrate, the adhesion of the paint will increase the thickness and sense of layering of the artwork, creating innate conditions for the texture's quality.