the analysis of a advertisement(the forth composition)

First,we can see that the main color is blue: blue sky ,blue sea ,and blue product. I think blue can make people feel relax ,just like the product do. The woman in the picture are not gazing at the viewers.It is an “offer” of image action. What’s more,the woman are shown from the waist,so this is a medium  shot.The medium shot can perfectly show the women's movement and her   motivation.From the left of the picture, wecan see the product'name .It's a kind of way to highlight something. On the right of the picture there are two bubbles and two woman.And the two woman are the same people.For me , the bigger bubble is full of water.That means after using this product you will not worry about losing water.  The small bubble mean future--- after using this product this woman will become mor beautiful ,just like the small woman.