A complex, 2D abstract design inspired by the Fibonacci sequence and sacred geometry, featuring interwoven, spiraling shapes and mandalas with intricate linework, circular patterns, and golden ratio proportions. The design should have hidden elements that reveal an octopus subtly integrated into the pattern--tentacles flow seamlessly within the spirals and curves, almost camouflaged among the geometric forms. Deep oceanic colors like indigo, emerald, and hints of gold create a mysterious and harmonious palette, adding depth without overt shadows. The octopus should be subtly woven, with its form emerging only upon close inspection. Ultra-fine details, high resolution, 8K precision, –v 5 –ar 1:1"