A soft, cute 3D animated octopus character named Octo, Pixar/DreamWorks-style mascot. Octo has a round head, big shiny expressive eyes, a small smiling mouth, and smooth pastel-purple skin with a gentle glow. He has eight short, flexible tentacles with subtle suction cups, slightly waving as if greeting. Octo is underwater in a bright, clean ocean scene with soft blue light rays, floating bubbles, and a friendly classroom-like vibe. He faces the camera directly, raising one tentacle in a cheerful wave, warm teacher-like expression, approachable and playful. Cinematic lighting, shallow depth of field, ultra-smooth textures, cute proportions, high-quality 3D render.
