Central theme Background Images Question (Think Spotify)

Hello –

First time poster here.

The following site needs to have a Spotify like user experience. As you can see the home page has a large image at the beginning of the home page. What I would like to do is continue having large images (i.e. 1920 x 1200) throughout the homepage (entire site for that matter). Is there a shortcode that will allow me to do this? If there is not a shortcode, what is the optimal approach for this task? I don’t have any special plugins installed and tried one plugin that didn’t do what I wanted (background manager).

https://beta2.fairwayphysicians.com/

Big picture, need different and multiple images to take up the entire background of the web page (i.e. Spotify) and have separators in between each image.

Thank you for your help as it is truly appreciated!!

Cheers,

iAndrew