This design shows a sunny yellow background that feels like a warm day, with a gentle green hill curving across the bottom. Near the upper middle, a rounded rectangular panel sits slightly forward, giving the scene a friendly focal point 🎉. Inside that panel, a birthday message appears in textured green lettering, centered and easy to spot. Two soft, puffy cloud shapes hug the panel on either side, like they’re leaning in close, adding a sweet, companionable touch. A dashed outline traces around the panel, neatly framing the words without feeling stiff. On the right side of the hill, a rainbow arc rests against the grass with bands flowing from red through violet, adding a cheerful burst of color 🎁. The hill is a deep green with a lightly mottled look, and the rainbow sits low on the right, curving upward against the yellow sky.