We have added in youtube tagging to put in detail about how we have address/attract our audience by adding in shadows to tell the audience that time has passed and the ticking of the clock represents that the day is coming to an end. 
we have also addressed our audience by adding in a voice over of a family doing what they normally do on a day to day basis it shows the audience a normal family environment.
Our target audience is 12-15 years olds and we think that our OTS is appropriate for this age group as there is no glory scenes and jumpy bits. It is a 12-15 year age rate because the family end up killing themselves.