The idea being this Coca Cola Light advert is that the new Coke is so 'light' it infact floats instead of falling downwards when being poured. Obviously it is just a play on the words but i think its effective and bring light humor to the advert.
This is an advertisement photo because the title is called fish and chips. The hair is shaped into a fish and the neck is surrounded with chip. It's shows advertising by giving us an example of how fish and chips will look