How can I create a separator page with an image?

I’m trying to create part separation pages. My structure is like below. “People” has a single image in it, and then “Intro” has some text. These are the section types “Part” and “Section” in turn, used only for this configuration.

Screenshot 2019-01-16 at 09.23.10.png

I can’t figure out the combination of breaks to ensure it’s on it’s own page without a blank page before or after it.

Ideally I want my image centered on the page, occupying 80% of the width