Meaning: The clouds were moving quickly, and the sun was shining brightly.
Choice of Words: Clouds are like cotton in the sky, and when they move quickly, it's like they're flying. "Flew" is the past tense of "fly." The sun is a bright ball of fire in the sky, and when it shines brightly, it means it's a clear day. "Shone" is the past tense of "shine."