Edelweiss, The color is the water is pleasant, and you have an interesting lighthouse in the distance. For me the third picture is probably the most successful as we can see more of the lighthouse.
All of the pictures seem a bit empty without a strong subject. With larger rocks or bigger waves perhaps the shoreline could be the main subject. But because the waves and rocks are somewhat small in size it might be advantageous to have more elements in the foreground (for example a boat, vegetation, or people). That bench with all the rope might be more interesting if we could see more of it. However, the top coincides with the shoreline and it is nearly the same color as the rocks so it does not stand out well. If you stooped down a bit you could raise to the top above the shoreline.
In the first picture you have some suspended tree branches on the far right. Rather than leaving those branches hanging, you should make a decision to include more of that tree, or eliminate it entirely. The lower tree appears to have some flowers or birds in it. If you get closer to that tree, enough to see what it holds, it might provide an interesting foreground.