Design a large 512 x 512 ocean floo...

Design a large 512 x 512 ocean floor environment as the main focus. The scene should be a detailed underwater landscape with uneven terrain, including sand, rocks, coral, and natural formations. Add strong height variation with slopes, dips, and layered ground. Include a giant octopus integrated into the environment, with its tentacles spreading across the seabed and partially embedded in the terrain. The octopus should not be isolated or centered alone, but blended naturally into the scene. Prioritize the environment and terrain over the creature. Avoid generating a standalone octopus. Focus on a wide, immersive underwater scene.