Take our apologies for this inconvenience. Such variants as Marriage, Street Photo were not included in theme import due to using essential grid visual composer element, which should be imported separately.
How to create Marriage or Street Photo variants:
1. Go to Theme Options > Header > select 14 (or 13) type of header
2. Import Essential Grid as described in our documentation http://www.8theme.com/demo/docs/royal/index.html#!/essential_grid
3. Go to Pages > Add new. Use visual Composer and add Essential Grid element. Select needed grid. All Page Layout settings (Sidebar, footer, heading) should be disabled. Save page and set it as Front page in Settings > Reading.