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 changing Logo go to Theme Options > Header > Logo

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

for changing background image of inner pages header go to Theme Options > Header > Title & Breadcrumbs > Container StyleKit
For adding, removing and styling social icons go to Theme Options > 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 > Header Settings > Title Type

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

Via Appearance > Widgets you can edit or remove any of footer widgets.
For editing or removing Back to Top or Quick Contact items go to Theme Options > Footer > More

Instead Quick Contact also you can create any page and assign it.

This section is Footer and this 4 columns are Widgets, You can edit Widgets from Appearance > Widgets

In widgets find Footer 1 to Footer 4 sidebar area sections and edit them.

For changing background color of Footer, Go to Theme Options > Footer > Footer Widgets > Row Container Style Kit
For edit or remove Text and Links go to Theme Options > Footer > Bottom of Footer > Icon and Text Element(s)
For changing Copyright text go to Theme Options > Footer > Bottom of Footer > Icon and Text Element
For changing Background color of this row go to Theme Options > Footer > Bottom of Footer > Container Style Kit
This is a Content box and inside it there is Title and Text Element and Button Element. It mean you can add or remove element inside content box.

For changing Background image, hover over content box and edit it to find Overall style kit. Also box have padding top, you can also change it for your need.

This element is Accordion you can add unlimited accordion items and add any content into each accordion.
This is PNG format Image Element and you can replace it with your own PNG image.
This is PNG format Image Element and you can replace it with your own PNG image.
This is Counter Element and you can change number, symbol and styling.
For changing background color of this section, Edit this Row and under Design Tab you can find and change Background Color.
This element is Posts Grid and shows Posts. You can edit it and change styling or settings. Also from Dashboard > Posts you can add your posts.
These are Image Elements and you can replace them with your logos or images.
This map is Image Element and you can replace it with your own map image or real map iframe.
This is Banner Element, You can edit it and change image, title and description and all styling. Banner element have over 15+ types and styles.
This four columns are inside a Row, this row have -100px margin top, by editing row under Design Tab you can change that margin top.
This is image element with PNG format image, You can replace it with your own PNG image.
To change background color, edit Row and under General tab you can find Parallax option.
This dots are for image element, Edit image element and find Background Layer stylekit.
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

For editing mobile and tablet header go to Theme Options > Header > Mobile Header