In this ad they use the colors to try to convince when you first look that it'll be a heartfelt, but when you read the text you're surprised by the fact that he's talking about 'missing his lung.' It makes it slightly dramatic too. It shocks the reader and when you realize what it's advertising you get a wholle new view on the product.

I like the point this puts across, and the way it does it. Very good idea to only use and 1/8 of the board to show that all you really need. For the designers they had to make their point made, and to conserve water is what they are trying to advertise. By using one a small space and leaving the rest completely empty, you realize that you really don't need that much water, and probably use more that you need.