For instance, you look @ someone elses work, and mould the basics around it.
Take others criticism & use it. Just think what you lack in yo verses & what you need to do to make it more appealing.
Topically, you have to have depth, otherwise its just a verse full of vocab. You got to have a basic storyline/plot to draw the viewer in, vocab is also important. You also need to include emotion to reach out, and you have to write in different perspectives.
Audio I don't know. I don't do it.