|The lovely book cover|
It's a girl in a dress standing at the top of a hill by a tree (papaya I think), and the sky has lovely shades of purple, blue, pink, and soft yellow (I know the details about the colors will be pretty meaningless to those who are congenitally blind). It's a sunset or sunrise, with the girl silhouetted against the sun, and in the top right corner of the picture is night sky. It's painted.
I tried to find out who illustrated the cover so that I could provide that info here, but I can't seem to find out who the artist is. If anyone does know how to find this info please let me know. :)