Sky above Clouds

I was going to discuss wind turbines today, but my image of America as Big Sky reminded me of Georgia O'Keeffe's Sky above Clouds. I thought Georgia O'Keeffe's works are mostly flowers. So when I was walking down the stairs in The Art Institute of Chicago, I was shocked to see the simplified yet definite existence of clouds. I just wonder why she decided to draw Sky above Clouds.  Definitely Sky above Clouds present a world of no problems; the world underneath is covered by her clouds, and all you can see is the rosy horizon.  You are above everything.  All those clouds, though identical, are all different sizes, and none of them look they are blown by winds; they just stay where they are.  They are not influenced by anything else.  The clouds I see from the earth change forms constantly.  While O'Keeffe eternalized small flowers in such a large size, she also shrunk the sky as our size.  The canvas is very wide, and it looks big, but compared to the real sky, it is very small! 

http://www.artic.edu/aic/collections/citi/images/standard/WebLarge/WebImg_000001/8222_355125.jpg

Big Sky is the first impression of the United States for me, but the sky with various types of clouds represent unstable world.  If I happen to be drawing Sky above Clouds, I might be drawing anything and everything I can see between clouds! I just wonder where Big Sky and Sky above Clouds will take me.