Here is a campaign from onepercentfortheplanet.org. They describe themselves as "a growing global movement of 1402 companies that donate 1% of their sales to a network of 2,414 environmental organizations worldwide."
In this particular example there is only one image. I think the lack of images reflects on the goal of the organization: supporting the environment. Thus the one image is an example of only using what you need to use. The image directly matches the title of the advertisement. The only contact information listed here is a web address; a presumed attempt to lead you to a source that the organization must feel has all the answers to any questions you may have.
I like this particular ad because though the title references dolphins, we recognize (before reading the copy) that they are referring to the human race.
