It appears from these trailers that the use of lighting reflects the mood, themes and story lines used in each trailer and so when creating our own, I should be aware of how we use ours and the effect this will have on our audience. For example as in the EastEnders trailer, low-key lighting often creates shadows on characters and this builds suspense for the audience with connotations of mystery, danger or death. I have also taken note of how we can use lighting effectively, potentially integrating it with the use of transitions, as with the Home and Away trailer, in order to make our trailer appear to run more smoothly if we cut between high and low key lighting.
