The front cover of the birthday greeting card bursts to life with a whimsical, cartoonish illustration reminiscent of Charles Schulz and Bill Watterson's lively lines. Center stage is a cartoon owl resembling the iconic Duolingo mascot, sporting a vibrant green with oversized, playful eyes and exaggerated fluffy eyebrows. Its wings are spread wide in a welcoming gesture, and it's wearing a tiny, festive party hat tilted slightly to the side.

Behind the Duolingo owl, a colossal, rainbow-colored birthday cake towers with layers, each frosted in a different hue: red, orange, yellow, green, blue, and purple. The cake is adorned with multicolored sprinkles and topped with a large, wiggly candle flickering gently, sculpted to look like a tiny, animated flame.

The background is a clear, cartoon sky painted in cheerful shades of blue with fluffy white clouds. Among these clouds, there's a creatively drawn blimp floating by, with a vibrant banner trailing behind it that reads "Leah" in large, bold, colorful letters, styled in a playful, balloon-like font.

In the foreground, there's a group of comically exaggerated party guests, drawn with influences from Osamu Tezuka and Walt Disney. These characters, featuring a diverse range of exaggerated facial features and exaggerated expressions, wear party hats and have wide, open-mouthed smiles as they gaze at the towering cake and cheerful owl.

The scene is framed with a bright, cartoonish garland of paper lanterns and streamers dangling from above, decorated with stars and moons reminiscent of Hergé’s clean lines and vibrant style, adding to the festive atmosphere of the card.

Generated with these themes: Duolingo.

Made with ❤️ by AI.