At the top of the Cartoon Style image, Gelukkige verjaardag Isa in big rainbow bubble letters with a white outline, glitter sparkles, and tiny star confetti.

A cute, playful Cartoon Style scene: a chubby unicorn with an oversized head, huge twinkly eyes, rosy cheeks, and a shiny golden spiral horn bounds joyfully across a vivid rainbow. Its fluffy pastel-rainbow mane and tail swirl in energetic motion lines, strands flying, as it smiles wide. Thick bold outlines, bright saturated candy colors, cel-shaded with glossy highlights.

In one hoof, the unicorn balances a slice of birthday cake with a glowing candle; in the other, it clutches star- and heart-shaped helium balloons on curly ribbons. Below, scattered wrapped presents with giant bows, cupcake sprinkles drifting, confetti bursts, and sparkly starbursts add festive energy.

Background: a turquoise-to-pink sky gradient with cotton-candy clouds, soft sunbeams, and tiny glittery twinkles. Add gleaming highlights on the horn and balloons, and a gentle magical glow around the candle flame.

At the bottom, small curved caption: Hoorntastisch! in playful pink hand-lettered script with a white stroke and subtle glitter, much smaller than the main title.

Composition: vertical portrait, full-bleed, unicorn centered and slightly angled mid-leap; thick outlines, exaggerated proportions, whimsical, energetic pose; crisp vector-like linework; no watermark or logos.

Generated with these themes: Unicorn, and .

Made with ❤️ by AI.