Sprite wrote...
The conclusion is a reflection of the main idea of the essay. What is the name of the course you are taking? Certain courses have different standards for conclusions.
Also I'm not quite sure what you are looking for. What is the main idea of your essay? Because from me reading it once, it just looks like you're stating the obvious and giving examples.
There is no main idea or argument. The topic was to outline and give examples of all the banishments in Oedipus the King. I have no idea how to conclude something like this without just rephrasing the intro.
EDIT: Just a standard English course