How to draw colorful decorative paintings? What materials are used? What should I pay attention to?

Can decorative painting be painted with gouache? Decorative painting is a kind of silk painting art which originated in the Warring States Period. I don't pay much attention to improving artistry, but I pay great attention to the coordination and beautification effect with the environment. Generally, it can be divided into concrete theme, image theme, abstract theme and comprehensive theme.

You should be given questions in the exam. When I give you some reference exams, I will use my imagination according to the topic.