After this section you can edit content via Page Builder, Go to Pages and edit Home page

Or in your site front page, in the admin bar find Edit Page ( Back-end Editor ) or Edit with WPBakery Page Builder ( Front-end Editor )

For editing mobile header go to Theme Options > Header > Mobile Header
For changing background color of this row go to Theme Options > Header > Header Top Bar and find Container StyleKit
For editing search icon or shop icon, go to Theme Options > Header > Header and find Search and Shopping Cart Elements
For changing Logo go to Theme Options > Header > Logo

For changing size and margin, go to Theme Options > Header > Header >  Logo element

For editing this line information, go to Theme Options > Header > Header Top Bar and find each Icon and Text Element
My Account is linked to popup element which is designed in custom page and assigned in header top bar, For editing My Account go to Theme Options > Header > Header Top Bar and find Icon and Text Element

For editing Popup and Login form go to Dashboard > Pages and find Login Popup page

For adding, removing and styling social icons go to Theme Options > Header > Header > Social Icons

And for changing margins go to Theme Options > Header > Header > Social Element

This section is Slider, You can edit, add or remove go to Dashboard > Revolution Slider

For disabling slider or changing it with other title type

Example Breadcrumbs or Title, Go to Page Edit > Page Settings > Title Type

For overall website page title type go to Theme Options > Title & Bredcrumbs

This section is Footer with 3 columns of Widgets, You can find widgets from Appearance > Widgets

For changing this row background go to Theme Options > Footer > Footer Widgets and find Container StyleKit

For editing or removing Back to Top go to Theme Options > Footer > More

For changing Copyright text go to Theme Options > Footer > Bottom of Footer > Icon and Text Element
For changing Background of this row go to Theme Options > Footer > Bottom of Footer and find Container StyleKit
For changing Custom Links go to Theme Options > Footer > Bottom of Footer > Icon and Text Element(s) in right position
How to change background? You must edit row then under General tab you can find Parallax field  then remove or upload your own background image.
How to change background? You must edit row then under General tab you can find Parallax field  then remove or upload your own background image.
These are Service Box and you can edit Icon, Title and Content of each service box separately.
This is Video Player element, you can edit it and upload your own image for cover and set Youtube or Vimeo URL
This is simple Button element you can edit title, color and styling.
These are Counters element which you can edit Number, Symbol, Title and Styling. By finding Container StyleKit also you can change background color of each counter.
This is Image element of mobile and hand mockup, you can replace this mockup with your own image.
Edit this row and under Design Tab you can find and change Background color.
This is Image element you can edit and upload your own image, for changing left border color, Find Image container Stylekit and find border fields.
This is Title and Text element you can edit and change text or colors.
This is Posts Grid Element and query is set to Projects post type. You can edit this element layout and settings and for adding new projects go to Dashboard > Projects
This element is Service Box and you can change its Title, Icon and Description.
For editing menus items go to Appearance > Menus

For editing menu navigation settings go to Theme Options > Header > Header > Menu Element

And for styling menus go to Theme Options > Header > Header > Menu Styles of this Row