Illustration: Tiefsee-U-Boot

Flat 3D illustration of a round yellow submarine exploring the deep ocean, the submarine with large glass portholes revealing a curious little squirrel wearing a tiny diving suit waving from inside, a long mechanical claw gently collecting a glowing jellyfish in a glass jar, schools of orange clownfish and a green sea turtle swimming past, swaying purple coral and sea anemones on the seabed, the water darkening from turquoise near the surface to deep navy at the bottom, floating bubbles and tiny plankton particles, soft rounded shapes, glossy shading and clean cutout layers, composition with the submarine centered and the seabed rising along the lower edge, cool blue light shafts streaming from above with warm yellow glow from the submarine headlights, palette of navy, turquoise, yellow and coral, adventurous playful mood, high detail, high resolution, 4k