An introduction can vary in length depending on the overall length of the essay, but in a traditional five-paragraph essay it should be no longer than one paragraph.
Unlike an emblem, a symbol may have different meanings in different contexts. Ernest Hemingway, for example, is known for writing in very short, straightforward sentences, while James Joyce characteristically wrote in long, incredibly complicated lines.
He was rejected by his creator and then rejected by society due to his appearance. It actually sounds pretty amateurish.
Great works of literature are complex; great literary essays recognize and explain those complexities. His shocking appearance does not help matters.
So he was alienated even more from his creator by acts of rebellion and revenge.