I'm always caught by surprise by the perfect circles I often see in the clouds. Lately I've also found triangles, squares and rectangles in the skies--which is VERY odd indeed!
NOTE: If you want to see some truly interesting artwork check out my darling Sissy's new blog! I am so proud of her! Her perspective is truly unique. Here's the link: http://clytie-randomtrash.blogspot.com/