- How a writer can create tension
- How Preistley creates a certain atmosphere/ how he shows off a character(s)
- Literary devices and how they are used effectively
Also look for the hidden meanings behind the words, examiners love that type of stuff. Instead of just seeing "It was a cold day" really look for what that could symbolise. Reflect the characters feelings? (Pathetic fallacy) Foreshadow something in the poem/ text?
Hope that helps somewhat, good luck with your mock.
P.S. If you need any more help feel free to privately message me!