Clockwork Firefly Odyssey

Create an original vertical cinematic four-panel 3D animated adventure poster telling one short story about two sibling inventors chasing a runaway clockwork firefly. In panel one, show a skeptical square-faced young inventor in a moss-green aviator helmet at a misty hilltop workshop. In panel two, show the cheerful sibling with curly lavender hair discovering a glowing brass map in a market greenhouse. In panel three, place both children in copper diving suits inside a turquoise underwater library. In panel four, reunite them in a moonlit glass observatory with the clockwork firefly hovering between their open hands. Use premium stop-motion-inspired 3D animation, tactile clay skin, hand-painted fabrics, expressive faces, cinematic depth of field, and a coherent teal, brass, lavender, moss, and coral palette. Divide the 9:16 poster into four clear equal horizontal frames with thin cream gutters and keep character designs consistent. No text, logos, watermark, trademarked characters, extra limbs, or distorted faces.