This could also represent lesson #2 on depth of field. The background fades into insignificance without being so blurred that it is entirely lost. Again, we are in Alaska but the main focus is the emotion that is created by the subjects of the picture. Obviously, related and obviously sharing a private joke, it went something like this, "pssst, do you think Dad knows which button to push?" The truth of the matter is the new digital cameras do alot of the work for you so you have very little editing post picture taking. A great picture may not be the one taken by the "professional photographer" but it will always be the one that invokes the sweetest memory.