Although the topic is given (LOVE), you may write about it in the format you feel more confident with and that fits better the way you see this word.
- Talk about it in a descriptive way, that is, describing what this feeling means to you
- talk about a person, a thing, a situation that may represent this word.
Although it's a freer composition in terms of format, you should write it in a full TEXT.
It follows description on your book