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 button, go to Theme Options > Header > Header >  Button element
For changing button, go to Theme Options > Header > Header >  Search element
For changing background color of this row, go to Theme Options > Header > Header > Container StyleKit
For changing background color of this row, go to Theme Options > Header > Header top bar > Container StyleKit
For editing this text and icons, Go to Theme Options > Header top bar > Icon & Text elements
For adding, removing and styling social icons go to Theme Options > Header > Social Icons


And for changing margins go to Theme Options > Header > Header top bar > 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

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 is a Content Box and inside it there are 5 columns Images, You can edit each Image separately and change it. Also by editing Content Box and Finding Container StyleKit you can change color.
This section is Footer and this 1 column are Widgets, You can edit Widgets from Appearance > Widgets

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

For changing background color of Footer, Go to Theme Options > Footer > Footer Widgets > Row Container StyleKit or Footer > More > Overall Footer
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 Content Box and inside it there is a Title Element, By editing Content box and finding Container Stylekit you can replace background Image, and under Back Box tab you can change flip box content.
These are Service Box elements and you can replace all Images, Titles, Content and Buttons title
This is Content Box element and inside it there is a Image element, Under Advanced tab you can change Stretch option for content box.
This is Content Box element and inside it there is a Image element, Under Advanced tab you can change Stretch option for content box.
This is Content Box element and inside it there is a Image element, Under Advanced tab you can change Stretch option for content box.
This is a Image element and you can replace it with your own image, under Advanced tab you can change tilt hover effect
For changing Background Image, edit this Row and under Design tab find and change background image and color.
For changing background image of this row, Edit this row and under General tab and find Parallax Image option
This is a simple Image element and you can replace it with your own image
This is a Title and Text element and you can replace it with your content
This is a Stylish List element and you can replace all icons and texts.
This is a Title and Text element and you can replace its content with yours, Under Shape tab you can replace background text.
This is a Button element and you can replace it with your title
This is a Title and Text element and you can replace its content with yours, Under Icon tab you can replace Number
This is a Title and Text element and you can replace its content with yours, Under Icon tab you can replace Icon image
This is a Title and Text element and you can replace its content with yours, Under Shape tab you can replace background text.
This is a Title and Text element and you can replace its content with yours, Under Shape tab you can replace background text.
This is a Title and Text element and you can replace its content with yours, Under Shape tab you can replace background text.
This is a Title and Text element and you can replace its content with yours, Under Shape tab you can replace background text.
This is a Title and Text element and you can replace its content with yours, Under Shape tab you can replace background text.
This is a Image element and you can replace it with your own image, under Advanced tab you can change tilt effect
This is a Posts Grid element and showing Projects post type, you can edit it and change settings, also from Dashboard > Projects you can replace projects.
This is a Contact Form 7 Pro element and you can change its design and columns, From Dashboard > Contact you can find contact form and edit its inputs.
This is Carousel elements and inside it there are 3 Testimonials elements, You can click on Arrows to change carousel slides then edit each slides. If its hard for you, You can try it from Back-end editor.

Also you can edit Carousel separately and set new settings or add arrows, etc.

For editing menus items go to Appearance > Menus

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

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

For editing mobile and tablet header go to Theme Options > Header > Mobile, Tablet Header
Constrcution edit