Creating writing is a form of writing that encompasses a number of different genres and styles. It further focuses on elements such as character, development, narrative and plot, infusing its structure with imagination and story.
for pictorial essay: assess and interpret the image used. Then come up with a best suitable topic (figurative or literal) and use an image to construct an essay in a form of descriptive or narrative essay.
NOTE: an essay can be a combination of various forms (narrative/descriptive/argumentative/reflective or discussive)