How to adjust height of section on homepage

Hi,

I am trying to get rid of the white space under my image on my homepage by making the section larger. However, I am not sure how to do this. Any advice on how I can make the section larger in the Zion template homepage would be greatly appreciated!

Or alternatively, add a blank footer, but have the entire image bleed into it, like it does the header?

Basically, I just don't want this white space under my website.

Thanks!

The site is private, we can't access it. You can follow this guide to share url again.