Design a large ocean floor environm...

Design a large ocean floor environment with a giant octopus as the central feature. The octopus should be extremely large, with long tentacles spreading widely across the seabed and partially wrapping into the terrain. Focus on natural integration, making the octopus feel like part of the environment. The ground should be highly detailed and uneven, with sand, rocks, coral, and layered terrain. Add height variation with small hills, dips, and scattered formations. Include dense environmental details such as coral clusters, plants, and organic shapes. Avoid flat terrain and avoid artificial structures. The scene should feel alive, organic, and immersive, with strong depth and variation.