How to write a food safety poster artwork description as a college student

Hello, as a college student food safety poster work description how to write, I personally think it should be written. The main idea should be clear, first of all, the purpose is to improve the quality of food, to ensure food safety. Then, in several aspects to expand. You can start from the origin of food packaging, date, implementation standards, ingredients and so on. Finally, write that food is good and bad, there are national standards, the need to compound food safety laws.