Add full width photo under header on some pages

Hello, I’d like to add a static large photo, the same size as the slider, under the header (like the slider is on the home page)on some of the pages I add to my website using the Desire theme. Does anyone know how to do this please?

this is the home page of the site, but I am still working on the other pages. I want just a few of the other pages to have a static photo just like the photos in this home page slider. https://www.autumnspromise.com/