At Higher English masterclasses run by West Lothian Council they were basically showing that you can do intros two ways.
The first way is using the T. A. R. T. method, which basically states that in the intro to have Title Author Reference to task Text background. And also, to make your intros flow so instead of saying "In this essay i will look at x, y & z" say something like "The author develops the text through a mixture of x, y & z"
The second way is basically the same but taking the brief outline of the text into the second paragraph and starting your analysis in the third paragraph.
Hope its of some help and good luck next week!