adding a background image to the footer and centering

I am attempting to add a white background image (http://restministriessunroom.co/wp-content/uploads/2013/11/footer-background.png ) to the footer of my wordpress site, centered.

http://restministriessunroom.co/

I have been able to make it transparent to remove the color that was previously there (it went all the way across the page).

I will put the code I have so far below.