Coral-Braided Inventor's Sunlit Contraption

Wide advertising poster in a vertical 4:5 format: a jubilant young tinkering inventor with coral-braided hair and oversized brass goggles hovers midwater in a glowing abyss workshop, presenting a whimsical lacquered-wood contraption shaped like a bulbous treasure vessel, surrounded by layered papercut diorama scenery of curling sea cliffs, scalloped trenches, floating gears, ribbon-like bubbles, and playful schematic symbols cut from mint and candy-pink paper. The entire scene feels sunlit from above by radiant beams filtering through the water, casting crisp dimensional shadows across stacked paper layers. The central invention is polished and gleaming, with delicate etched panels, tiny spinning fins, and translucent compartments catching the light. Decorative hand-cut motifs burst outward in a celebratory halo, while generous open space remains at the top and bottom for bold headline and tagline placement. Clean, high-impact commercial composition, whimsical luxury, sharp central focus, joyful energy, pastel candy pink and mint palette with subtle pearlescent accents.