An artist needs to have four basic skills. The first is the ability of color matching, which is color matching. If an artist can handle the relationship between colors, the overall effect will be good, so the artist's color skills are necessary. The second is typesetting skills, which should be able to handle the relationship between points, lines and surfaces. If it is not handled well, the overall effect of the page will not come out. The third skill is software skill, PS DM, which mainly means that these two softwares should be used skillfully. It doesn't matter if you don't understand the rest. The main thing is that these two can cope if they understand. The fourth is code programming, if you have this skill is the best, if you are not familiar with the first three.

I hope I can help you and adopt it.