Below is my draft version for my trailer.
To help me make these changes I contacted Tim a media technition helped me with the lighting aspect and showed me to change the lighting using premier pro, I did this by changing the tint and colour balance which made it darker and look more eery as it is now darker so fits the genre better. When I next went filming for the trailer I filmed each shot I took in a variety of angles so that I then had more variety of shots as this was a key point that my focus group said.
The key learning point is that I need to use music tech to help me import some sound effects and also add dialogue into my trailer to make the narrative more clear and shows more of the generic codes for horror films (screams).