It's really important to learn color matching first to make the renderings well. (It is the so-called soft film. Secondly, most materials have a general parameter range, which needs to be remembered. After having a memory, I've been digesting it for a long time. Then light, which I personally think is a good optical network, greatly enhances the whole atmosphere. There is an optical network called Intermediate Light or No.8 .. Many people are using it. How specific it is varies from person to person. Vray surface light is not used unless it is absolutely necessary. The attenuation of floodlight is well controlled and the effect is very good. Good renderings, lighting and materials complement each other. Both are indispensable. Look at more optimistic design works and master the model. Accumulation is very important. This road is not so easy, you encourage it. The above is my personal opinion, I hope it will help you. )