How to write seal script, official script and regular script?

See how you lay out! What kind of effect is needed! What font are you good at! Let's decide according to these! In fact, calligraphy has no rules! Follow the routine! Can be innovative! And personally think! It should also be the main hall! Write in batches! Because patriotic quotations are more solemn! It is best to write in regular script! But the foundation is good, and it still has charm when written! Brother, it's up to you!