As for the need to paint the wall:
School (generally, the art teachers in my school have already contracted)
Municipal government street office (large paintings such as squares are really profitable, but they are all occupied by "relationships")
Beverage shops and restaurants are all operating shops with special styles (you can ask the clerk or boss to draw them yourself, and you don't need to ask anyone. If you invite people, you will find some famous ones, so that you can promote your own shop, make selling points, publicize features, and even just need decorative paintings instead of wall paintings)
Individual bosses have to draw billboards by hand (this is really rare), and it is not necessarily painting the walls. This consumes a lot, and such a boss will be cheated!
Basically, these are things that need to be painted, but they are still very important. It doesn't matter. If you find them, it's not your turn! I have a friend who paints wall paintings, and the neighborhood committees and neighborhood offices entrust him with the responsibility. He made some money, but he was very tired, because of his connections.
Hand-painted illustrators draw very little now. It's basically digital painting. . Illustration, there are not many full-time jobs, and they are basically contributing to magazines and the like. For details, you can go to forums like Illustrator China, or join some illustrators' QQ groups, where many people do this business.
How to submit hand-drawn illustrations, where to put them and how to cast them? Pay attention to what's going on online. Many platforms will do activities online and have good works to contribute.
We often do these activities and will be familiar with them. Generally, we upload photos or scan them first, then submit them to the designated email address, pay the contact information, and an editor will review your manuscript.