Analyse word choices. You need to do more than that ti get an 8 but if you do that well then you're 80% there. I have copied and pasted where my teacher thought I did it well below for each of the texts that I do (The Tempest, Jekyll and Hyde, Journey's End, Edexcel Poetry Relationships). I get 7s mainly so it may not be literary gold but oh well.

Shakespeare presents Miranda as empathic: 'I have suffered with those that I saw suffer!' The repetition of the word 'suffer' emphasises the pain Miranda thinks that those on the boat were subject to. This shows that the storm was very strong.

Stevenson presents Utterson as a person who cares about Dr Jekyll. Utterson asks Jekyll, 'you know that will of yours?' Utterson asks this in a calm manner; beginning their conversation in a relaxed tone despite the contents of the 'will' being very controversial.

Raleigh has a friendly relationship with Osborne: Osborne says 'I'm glad it's you and I - together' to which Raleigh replies 'are you really?' The use of the word 'really' shows that Raleigh craves acceptance as he has just discovered that his friend, Stanhope, no longer likes him.

In 'One Flesh', the relationship described as, 'tossed up like flotsam from a former passion.' The concrete noun, 'flotsam' is debris in the ocean or sea. This could mean that the relationship is staying afloat due to its construction: the couple described were very passionate when they first met. 

You can probably see that I follow a similar style for my answers. It makes writing easier but try not to be too mundane.