Aye, Tintifax, this picture's fine but for the materials! The little sliders in the Materials Lab, at the top, are merely for scale or "noise", although they don't really affect the actual noise of any given channel. I'd say spend some time in the Deep Texture Editor, and try Tuttle's idea for the water, it should be great! If you don't get anywhere further on the materials, keep this project and come back to it later when you either have better materials or you feel more comfy making your own. Some people run around naked.