As a web editor you have the ability to create a landing page for each subsite. A landing page is nothing more than a page with a simplified styling using widgets to create a unique layout for that specific subsite. Here are some guidelines for creating your landing page.
Frontpage Settings(and click
Save All Settings)
Title Bar Settingsto
Now you are free to use the Advanced Layout Editor to setup your landing page the way you like.
Everything else is up to you but you will need a title and some sort of navigation so that visitors are able to get to the information they need. There are a number of options for navigation, so you are free to play around with those. Remember, pages in your subsite besides the landing page will be required to follow the standard layout.