I like this magazine ad because it is a little humorous, and grabs attention. It looks like a smile, but is two toothbrushes together, creating the illusion that if you use Colgate to brush your teeth, you will have bright, white teeth!
I think this is a creative way to catch the attention of an audience. This is a funny yet truthful message which supports the ad. Because of this catchy image, there's no need for much of a description or caption.