Start by introducing the idea, as if this person is somebody who doesn’t know much about it. Then give three examples each on how it’s been both positive and negative, then add a transitioning sentence to be able to start your next paragraph.
I have written a similar essay. Except it was multiple pieces completed by two different artists. I would say start with the intro, then write the similarities in the second paragraph, the differences in the second paragraph, and the conclusion. If you need more paragraphs to reach requirements then do this:
1. Intro: give brief background to artwork and artist and write thesis
2. Similarities in technique
3. Differences in technique
4. Similarities in emotion conveyed
5. Differences in emotion conveyed
6. Conclusion: summarize comparison and rephrase thesis.
*no idea if this answers your question*
C is the correct answer. "Everything we ever said to one another is wrong," she told me.