Narrative or traditional literature reviews can take many shapes and forms. They do not need to follow any specific guideline or standard.
A narrative literature review can be a first step to building on other research in the field. After all, if it's a topic that you're interested in, you need to know what's already been done, right?
Your Narrative Literature Review Should Have...
A common structure for narrative literature reviews is IMRaD, or:
While the structure above may be sufficient for your topic, you may also consider using the similar but more robust structure IAMRDC, or: