Last week I showed you an essay that I had written with my students. I later noticed that the third paragraph didn't fully answer the question.
If you make a mistake like this, or any other type of mistake (grammar, vocabulary etc.), you need to rewrite and improve what you wrote.
Try to rewrite the third paragraph (beginning "On the other hand") in this essay. Make sure you write more than I did about 'alternative sources of money for artists'. I'll choose my favourite paragraph for next week's lesson.