I've always done the plain expository essay for Identity and Belonging - I got a 10/10 for it in the exam. This form of writing is pretty easy to get your head around as long as you know how to make your essay flow, how to really discuss arguments and how to make it all work in cohesion together. But, a LOT of people in the state do expository essays so you have to make yours stand out. What I did with every expository essay was for every body paragraph, I would use the text as an example and then link this to a real-life example or anything from other sources like other films/texts, lyrics, people's stories etc. And then throughout the essay, I would always try to connect these examples together by providing a dichotomy of arguments and sources - as an example:
Through the exploration into his background as a human being divided between two vastly different cultures, Ricky is able to channel the positivity of Carlina White’s odyssey of interpersonal development and is thus able to attain a stronger, more wholesome semblance of his identity and reaffirm his integration into Australian society. (Ricky is a character from the context text, Carlina White is from a real-life personal story)