Site is setup as preview of the theme http://paul-themes.com/wordpress/gilber/#Home
- Go to Dashboard->Slides
- Click Edit with Elementor on Home to edit content
- To edit the background image, click Edit on Home, you can see the Ken Burn Background on the lower section
- Same as above. Edit the About one in this step.
All other sections are edited like that. Search for the content mainly on Porfolio and Slides post types, you will find the mos most content of homepage there.