When generating Writing tests you will notice that some tests have images and some do not. This is by by design. For example, the Whanau and family time prompt does not have an associated image. This is because students should be recounting an actual experience with their family. In this instance, providing an image in a test paper may influence what the students write about.
In contrast, the Dogs at the Beach test has an image. It is expected that they will use this image to describe a moment in time.