Please go to Appearance-> Customize-> Variant Theme Options-> Featured Items and add atleast one image to the Home Page Feature Section to the "Variant Landing page". You can enable dummy data option from the Appearance-> Customize-> Variant Theme Options-> Theme Dummy Data to set up the theme like the demo website.
Please go to Appearance-> Customize-> Variant Theme Options-> Client Testimonials and add atleast one image to the Home Page Testimonial to the "Variant Landing page". You can enable dummy data option from the Appearance-> Customize-> Variant Theme Options-> Theme Dummy Data to set up the theme like the demo website.