At the top of the Cartoon Style image, the text: "Happy 40th Birthday Nathan" in bold rainbow bubble letters with thick black outlines, gently arched.

Portrait, full-bleed, playful cartoon scene on a sparkling turquoise river. Center stage: a joyful Black man with rich brown skin and short curls rows a sleek single scull, exaggerated and energetic, grinning wide. He wears a rainbow headband, music-note tank top, and rainbow wristbands. One oar is lifted like a mic as he “sings,” the other slices the water; the paddle blades are shaped like guitar picks. Each stroke leaves a trail of neon musical notes and rainbow splashes. The boat sports a small pride flag at the stern and shiny “4” and “0” number balloons bobbing on strings. A goofy rubber duck in oversized headphones bops alongside. Confetti and streamers arc through the air; water splashes stylized as hearts and eighth notes. Simple, bold background shapes: sunny sky with a sparkling glint, bright trees along the bank.

Style: playful cartoon, thick outlines, exaggerated proportions, bright saturated colors (electric blues, hot pinks, sunny yellows, lime greens), dynamic motion lines, whimsical, energetic poses. Funny, celebratory mood.

At the bottom, add a small cheeky caption in chunky comic lettering: "Row, Row, Rainbow Your Boat!"

Generated with these themes: Rowing, Black man, Music, Gay, and .

Made with ❤️ by AI.