At the top of the Watercolor Style image, Happy birthday

A whimsical, funny watercolor scene: a bright rainbow arcs across an airy pastel sky, painted with soft watercolor washes, delicate gradients, subtle pigment blooms, and visible natural paper texture. A curving rainbow road rises into the sky, and a convoy of chubby, cheerful little cars in candy colors putter along it; each wears a tiny party hat, trails confetti and balloons, and has smiling headlights. The lead red convertible balances a birthday cake on the roof, candles flickering with a faint watercolor glow, and its exhaust puffs bloom into tiny rainbow splashes. Puddles on the road loosely mirror the rainbow with wet-in-wet reflections; cottony clouds and playful paint spatters add energy. Keep outlines loose and sketchy, edges softly bled, and plenty of breathable white space for an airy, organic painting feel. Gentle contrast so the top text reads clearly against the sky. Add a small hand-lettered caption near the bottom in playful brush script: Over the rainbow and under the speed limit.

Generated with these themes: Rainbows, cars, and .

Made with ❤️ by AI.