The Review Analysis is a short paper (~2-3 pages) that explicates how the features of each review help it target an audience, suit a context (venue), and accomplish a purpose. The Review Analysis thus should lay bare the audience each review targets, what context it fits, what it seeks to achieve, and how it does it.

An effective way to proceed is to select concrete elements of your venue (language, tone, review components, imagery, visual style, etc.) and demonstrate how they are incorporated in your work. Also, discuss particular aspects of the audience (background knowledge, needs, expectations, etc.) and show how your work hooks into it. 

Essentially, you are presenting something like a legal case. Your argument is that each of your reviews belongs in its respective venue. You will prove this by marshaling strong evidence that supports this position.

Feel free to contact me with specific questions.