I thought more laterally about Calm Sea and took it further to weather in general.
Researched a bit more on how maps are read (in particular, the lines that indicate high or low pressure. high pressure is what I’m interested in as high pressure=calm weather) http://www.wikihow.com/Read-a-Weather-Map
In the last picture, the bottom left image is (to me) by far the most interesting but its low pressure/rough seas. The lines have to be close together to create a visually stimulating cluster of abstract lines but thats completely missing my concept.
I will have to find a way to make the top image more interesting. Perhaps background images or adding some more, relevant content.