Dear Thomas,
That resembles two featured, which are listed below:
1. You can set background image for whole site from customizer setting
2. You can header caption specific to pages: Here is how it looks like: http://demo.styledthemes.com/demos/puresimple/page-wheader-caption/
Don’t hesitate to come back to us, if you need any information regarding to our Styled Themes .
Thanks