Instead Quick Contact also you can create any page and assign it.
In widgets find Footer 1 to Footer 3 sidebar area sections and edit them.
For changing background image of Footer, Go to Theme Options > Footer > More > Overall Footer Style Kit
For editing boxes Parallax effect, edit Content Box and under More tab you can find parallax settings. 0 or empty is off.
Go to Theme Options > Header > Title and Breadcrumbs > Container, you can add or remove background image.