EXPERIMENT, RENDER, ADJUST, RENDER
cinema 4D offers great flexibility for experimentation, with layering noises. experiment with different blending modes and opacities, layering different noises on top of each other and see how they interact together. A good tip is to hover your mouse over the noise and use the scroll-wheel on your mouse to quickly flip through the different types of noises and see what they can do for your setup. Don’t go overboard with the subdivisions on the plane, you only need a rough visual of how the displacement is going to look once displaced in Octane.