What is in this image? Be very specific. Scientific, Engineering style! No emotions, no opinions, no metaphors. Just the facts, as detailed as possible.

The image depicts an underwater scene rendered in a line drawing style, consisting of various elements that suggest a marine ecosystem. The primary subjects include1. **Submarine** - Positioned in the central foreground, this object resembles a submarine stylized with a cartoonish design, featuring circular viewport windows and external protruding components that likely represent periscopes or communication antennae.2. **Marine Fauna** - There are several distinct species illustrated - Two stylized fish with streamlined bodies and visible fins, swimming in the upper right quadrant. - A cephalopod, possibly an octopus, characterized by its bulbous head and multiple tentacles, located in the bottom right of the image.3. **Treasure Chest** - On the ocean floor, slightly to the left of the center, a classic treasure chest with a domed lid and robust locking mechanism is depicted, suggesting themes of exploration or sunken treasure.4. **Underwater Flora** - Throughout the seabed, various forms of sea plants are evident, some resemble seaweed or coral, contributing to the image''s depiction of an aquatic habitat.5. **Additional Details** - Scattered around the seabed are small rounded elements that could represent rocks or sand particles. Bubbles are visible near the top left, typically indicative of underwater breathing or movement.6. **Shark** - Dominating the composition, a large shark is illustrated in dynamic motion, characterized by a pointed snout and sharp dorsal fin. The creature''s body contours suggest swift movement.This image employs a simple, clear line art style without shading, likely intended for applications such as coloring activities, educational content, or themed decorative purposes. The absence of color limits the visual depth and detail but emphasizes the outlines and shapes of each component.