You shouldn't focus on other perspectives heavily, they are to support YOUR OWN PERSPECTIVE. Read the rubric and the marking centre comments from previous years, the heavy use of other perspectives detracts from your own, thus losing marks.
As for structure it depends on your essay question, on a very broad question you could:
Construction - Revenge Tragedy
Content - Individual & Relationships/Spirtual-ness, Politics
Language Structure - Use of languages, esp. in soliloques.
Include those topics, use quotes to back up all your arguements.
To integrate a perspective, to reinforce your own arguements, you could say something along the lines of:
...this concept of __________ is reinforced by the proposition the Adelman puts forward in her essay __________, detracting from the idea of _________ while supporting the conclusion that the play centres on ______________
Bear in mind that its late, i haven't slept. Someone can probably offer better advice on the integration, but if your essay is soon then that might help.