What are the commonly used expressions in interior design (hand-drawing)?

Commonly used expression techniques for indoor hand painting are as follows:

1, the expression of pen tools, here pen tools refer to dip pens, including needle pens, gel pens, writing pens and so on.

2. The expression technique of watercolor painting, which is very simple, requires both paper and painting tools. For example, watercolor painting includes flat painting, halo removal and superposition, so the requirement for paper is both water absorption and water resistance.

3, gouache painting performance techniques, gouache painting, mostly based on bright colors, but not too heavy, pen water and painting color still life is not much different, just require a clean picture. .