Still life photography is a genre of photography used for the depiction of inanimate subject matter, typically a small group of objects. It is the application of photography to the still life artistic style. An example of it is food photography.
The best image is on the right as it is all clear and in focus. The worst image from the gallery above is the one in the middle this is because it isn't entirely in focus and its only one object, still life is typically a group of objects.