Missing elements to main theme

I like everything I see in the demo version, but I don't see those elements in my own theme to edit.  For example, on the homepage, to the left of the girl, there is "Simple and Classy" and then some smaller font description.  And then a call to action button.  That's exactly what I need and where I need it.  But I don't see it and cannot access it.  The words fly in and are animated.  Fine.  But I really only need one page version of it.  It appears the background is flying in too.  I don't see how to edit any of that. The footer seems to be missing too where I can have the menu for the pages (the dark box on the bottom). I might even want the trending products section.  Don't see that either.  Not sure if I broke my theme or where it all went.  I don't have that left side social media menu either. The developmental site is at https://0jh.899.myftpupload.com/