Images for page headers

Hi, is there a way to change the headers on the pages? The grey header doesn't look right on my pages and I'd like to add an image instead but not sure how to do this. Please help! My address is www.bridalaccessoriesuk.co.uk many thanks

 

Hello,

Paste this code in Custom CSS
Appearance > Theme Option > Styling Option > Custom CSS

Code:

.header_container.not_home{
background: url('Enter your image address here');
}

 

Thank you! Works perfectly