As others pointed out, quality is not dependent on length or the number of words. It has more to do with the effort you put into your work. Some tips for quality:

• Be sure there is a clear idea you want to transmit in everything you say.
• Don't repeat the ideas just for the sake of extending your content.
• Think about the value your message might give to others.
• Talk about things you know from experience to be true.
• Don't imitate others, be yourself.

Keep up the good work!