You can create a custom a custom header banner and footer banner which will show on your theme option pages in admin. 

You must be running the ThemeBlvd WP JumpStart framework. Place this in your "functions.php" file. 

Recommended image size for header and footer is 780px wide, and height is up to you. 

To control exactly what theme admin module pages the banners show on, see the gist titled "redoubt-options-panel-banners-visibility.php"