I thought about telling a story about a little girl who has very little in life, and reads about wishing stars every night. One night she notices a strong glow coming from outside her window. She sees the brightest star she ever seen and decides to make a wish. Suddenly the star comes down and she learns just how poerful wishes can be.
In terms of lighting and contrast, obviously I'm not a master yet. I wanted the focus to be on the little girl so I gave her the darkest tones in her hair and a bright face with rays of light leading you outside the window. I also made the desk she is reading at small and curve to emphasize her own size and softness.