Using very wet French Ultramarine Blue I have added some glazing to the wood on the dock. I have also begun to build some shadows under the boat and under the dock. Notice how the shadows around the dock posts fall on the water. When painting in the shadows, be sure to keep them consistent. Your main light source should be coming from one direction, so all the shadows should fall on one side of the objects. In this painting the light is coming from the upper left, so all of the shadows should be on the right of the objects. For interest I used varying values and I tried not to overwork.
I used a little bit of very wet French Ultramarine Blue to develop some brief shadows in the red sail cover.