1.) Put Yourself in an Image Buyer's Shoes
One of the simplest ways to get your head around how to keyword your images put yourself in the shoes of an image researcher or picture buyer...
Think like them. For example, if you were looking for images to illustrate a travel feature on Morocco, what keywords would you use to find a suitable image?
A buyer may use keywords based on the following...
It is a must to keyword a location-specific image with that particular area, city, region, and country. Ask yourself also, does the image show a noteworthy street, famous landmark or building?
All of this information is important and should be included in the keywords.
Noteworthy Features of the Scene
Does the picture depict any traditional ways of life or typical scenes, or does the pic show something unusual or alternative? Does the image include a person, multiple people, a crowd or show anything noteworthy taking place? Include this in your keywording.
Does the image feature any patterns, architectural highlights, designs or obvious formal elements? Or are there any particularly dominant colours in the scene? These should be tagged and included in the keywords.
Background & Concept Keywords
As important as highlighting any visible features in the photo, other keywords describing relevant, but 'unseen' elements of the picture can be paramount to the image buyer.
For example, is a particular landmark in the photo famous or lesser-known? Are there any socio-geographic factors linked to the photograph? I.e. was the image taken in a working-class or affluent area? Or did a noteworthy event happen at that place? Does the scene depict a typical travel scenario or adventure?
Include keywords to cover any important background elements to the story behind the image...