1. Find reflections
2. Notice the color of your photograph and adjust accordingly (the sky can give off amazing colors)
3. Be cautious of the seasons and the tides
4. Be sure to adjust your shutter speed in order to capture the movement of the water.
5. Mix up the format of your photo. Try taking the photo in a vertical position so you can capture both the foreground and the detail in the sky.
In this picture, they made their coastal picture better by finding a subject and capturing that with the coast in the background.
In this picture, they captured this picture noticing the colors that they were capturing, and turning the camera 90 degrees allowing them to have many elements of this picture.