What makes a quality piece of persuasive writing

What makes a quality piece of Persuasive Writing:

• Add clear arguments and opinions 
• Use full stops at the end of your sentences 
• Read your writing and correct any mistakes. 
• Use Strong words
• Make sure you use capitals correctly.
• Use Commas correctly.
• Add words or phrases to make your argument more powerful.
• Add exclamation marks! To make the words more strong.
• Add Paragraphs , Conclusions and introduction.
• Use facts to back up your argument 

By Zara, Jorgen and Stella