When all is said and done, the whole point of the photo is to take pretty picture. This photo was made with the color temperature on the camera set at 3950K ( the white fluorescent setting ), which gives the extra blue color to the sky. Then the sky was under exposed for an even deeper blue color and the flowers were lit with an off camera flash using high speed sync using and TTL to control the exposure.  The photograph was made on a Canon 5D with a 28mm lens at 1/640 of a second at f11 at ISO 200.