Brainstorm for Additional scene

After editing our film, we found that the narrative isn't as clear as we had thought it would be, so for this reason, we have decided to add an additional scene to the beginning of our film. Our film will make more sense if we add another scene to the beginning to explain more about the relationship between the main character and her mother, because at the moment our film is slightly fragmented.

Below are a few ideas that we had for this additional scene:

The idea we have chosen, is the first two. Below is a brief synopsis of what will happen in the additional scene:

(The day before the scenes we have already filmed) 
Millie and her mother are coming back from a walk and pass by a lampost with a poster on it showing a 'stolen car'. Then Millie notices that it happens to be the same make and colour car as one that is parked down the street (Sam's car). As they walk past they hear music playing loudly inside and catch a glimpse of the person sitting behind the wheel. Millie judges the girl straight away and jumps to the conclusion that the girl has stolen the car, but her mum doesn't agree. She tells Millie that she shouldn't 'judge a book by its cover', and Millie gets annoyed and storms ahead into the house. This is where our original film will pick up after the screen fades out to black to signify a passage of time.

Below is a rough draft of our storyboard for this additional scene: