At the top of the Illustration Style image, "Happy Birthday Varinia!"

Hand-drawn illustration with fine linework and textured brush strokes: a funny under-the-sea birthday party starring orangutans around a colossal, triple-layer chocolate cake. The cake oozes glossy ganache and sits regally on an open giant clam shell pedestal, topped with coral “candles” flickering like tiny reef flames. On the left, a wide-eyed orangutan in a clear fishbowl helmet puffs its cheeks to blow out the candles, sending pearly bubbles swirling; a helpful pufferfish puffs along, overdoing it. On the right, a second orangutan wearing a seaweed party hat floats slightly, held aloft by “balloons” (pufferfish on kelp strings), awkwardly balancing a slice of cake on a scallop-shell plate. An octopus waitstaff in a bow tie offers forks and napkins from different tentacles, while a mischievous crab scuttles by with a chocolate curl. Seahorses hold a kelp-and-shell bunting that frames the scene; schools of tiny fish form confetti swirls; jellyfish glow like lanterns overhead. Warm, expressive color palette: rich chocolate browns, orangutan russets, coral pinks, sunlit teals and aquas; dappled sunlight beams from above the water, gentle caustics across the sand. Balanced composition with lively, expressive linework, soft paper grain, and playful highlights.

Front-cover text styling: the line “Happy Birthday Varinia!” is hand-lettered in a bubbly, playful script at the very top, creamy white with a warm coral drop-shadow, gently arcing and dotted with tiny bubble details.

Small additional caption: near the clam pedestal, hand-lettered on a little ribbon clasped by the crab’s claw, add one short line of text: “Seas the cake!”

Generated with these themes: Orangutans, chocolate cake, under the sea, and .

Made with ❤️ by AI.