Check these things if your homepage doesn’t have the features in the demo.
- Did you create a page that uses the “Homepage” template?
- Is that page set as Static front page in Settings > Reading?
- You may need to add widgets in Appearance > Customize > Widgets
These things are done automatically when you import Starter Content. Please see the Homepage guide for more information and instructions on how to set your homepage up.
Also see Why isn’t the slider showing? if your theme has a slider.