Rainbow kids rainy day advertisement poster prompt

A joyful rainy day kids advertisement poster. A laughing young girl age 6 in bright yellow rain boots and a matching yellow raincoat twirls happily under a giant open rainbow umbrella 3x her height with bold red orange yellow green blue and purple panels, "RAINBOWKIDZ" printed in white bubbly font on the umbrella canopy edge. Soft grey rainy sky background with falling raindrops colorful puddle reflections and tiny rainbow arcs in the mist. Big cheerful rounded typography "RAINBOWKIDZ" in rainbow colors filling the background. Tagline bottom: "Every raindrop is a party." Small text top-right corner reads "Designed with GPT Image 2" in grey. Photorealistic, fun kids rainy day commercial, soft dreamy rainy day lighting.