This is a poster for the musical singing in the rain. The main poster colour scheme is a range of blues. when we think of blue we think of cold as it is a cold colour and i think this works well for the singing in the rain poster.
Simplicity, Symmetry and More: Gestalt Theory And The Design Principles It Gave Birth To
This book cover shows excellent figure ground/negative space. The contours formed by the position of the fox serve as the shape of a boy, I'm assuming "Peter." This empty space also creates a wonderful focal point for the book title to nestle into.