He might have chosen to use a rhyme scheme because couples are supposed to work together, compliment another, and be in sync, similar to a rhyme scheme
Answer:
Playfulness or happiness
Explanation:
Bright colors and fruits are often used to add a happy and light feeling to something. An orange peel gives a good visual about how bright the umbrella must be. If it were as grey as a ROCK that would infer that the mood is sad or bored.