Anomie, you pools of water look like turquoise rock outcrops to me. This is because you have a 'rough water'/'rocky cave floor' type of texture. I think if you had a smoother texture (you can smoothen your existing texture by reducing the contrast) with less saturated colour it would look more realistic. That said, it is a really nice colour and effect, and you might prefer to keep them exactly as they are, especially if you are not aiming for a photorealistic finish.