Except from basic WordPress settings for Pages, Reneva adds some custom fields that will help you enhance the feel and look of your content.
In Edit Page screen you'll find Page Options sections that offers:
you can select page to be full-width, or have left or right sidebar.
By default each page shows titlebar with breadcrumbs, like here http://reneva.purethe.me/services-list-1/ - to disable that section, check this checkbox
You can add subtitle to your page, and it will look like this
The image you're uploading as parallax background should be at least 1920px wide. You can set overlay color using colorpicker and set opacity level. The Parallax header looks like this:
If you set Layout to left/right sidebar, you can select which Sidebar you want to display. You can create additional Sidebars in Appearance -> Customize -> General Options -> Sidebar Generator
You can display any Revolution Slider on any static page