This illustration depicts a vibrant underwater scene featuring the classic comic characters Tintin, Captain Haddock, and Snowy the dog. They are navigating a sleek, black, shark-shaped submarine through a deep blue sea. Nearby, a diver in a vintage orange suit is kneeling on the sandy ocean floor, reaching into an open wooden treasure chest overflowing with gold coins.
To the right of the diver, the moss-covered, decaying remains of a shipwreck lie partially buried in the sand. The setting is rich with aquatic life, including several bright red fish swimming near the sea floor, a pale yellow jellyfish drifting in the upper mid-ground, and a school of small blue fish darting across the horizon. Tall, vibrant green seaweed stalks frame the left side of the composition, while bushy green coral grows on the right.
The style is clean and iconic, characteristic of the ligne claire comic art tradition, with bold outlines and flat, bright colours. The lighting suggests a clear day near the surface, casting a bright blue hue over the entire underwater landscape. The composition is balanced, drawing the eye from the submarine in the upper left down to the diver and the shipwreck below, creating a sense of exploration and adventure.