We seem to misunderstand each other.
When you import the demo content, you’ll get the exact look of our preview site (minus the images since we cannot provide those due to Themeforest terms and conditions).
When you import it all (as specified in our documentation) you’ll maybe need to select the menu and set in the Settings > Reading what your static front page should be.
And that’s it. When you go to your front page, you should have the exact look of the demo content you imported (layout, effects, header etc.). Just be sure to follow the steps in the documentation about importing it.