Movie Poster Design

Industry: Entertainment
Design details: I'm currently trying to raise finance for a film and need a concept poster design to show potential financiers. Below is the synopsis of the film. There is no cast attached, so will not be using pics of actors, but still need a design/image that is powerful and conveys the synopsis of the film. The film is an adaptation of a book, which is written as a young girl's journal.

Synopsis
Imagine This, explores the nature and consequences of a Nigerian family returning home to Nigeria in the 70s. Our story follows Lola Ogunwole, who along with her brother Adebola has grown up in foster care in England. Afraid of them being taken from him, their father makes the decision to move back home to Nigeria. Incapable of taking care of them, they are sent away; Adebola to an uncle in another city while Lola is sent to live with relatives in a rural village where the comforts she has taken for granted don’t exist and a drink of water entails a six-mile trek into the bushes. Dogged by events she has no control over, unable to speak the language and faced with challenges that would break a lesser person, Imagine This is about Lola’s search for love and acceptance, it’s a coming of age story about one girl’s resilience against the odds, which culminates in the bittersweet fulfilment of a long held desire.
Target audience: 18 - 40
Ideas for the visual style: Illustration, silhouettes, photography
Things to avoid: Dark sombre colours.
Where the design will be used: Print & Web
Extra notes: I was thinking along the lines of an open journal with the words Dear Jupiter scribbled inside. In the background a sinking African sun with the shadow/silhouette of the 9yr old protagonist. Film Title: Imagine This