There are many ways to display content on your web pages. However, consistency is key. If you chose to go with the default layout, then make sure all your web pages have that same layout. If you like to show a table of contents on your pages, make sure you stay consistent on all of them.
The page you're looking at is displayed as a table of contents (TOC) web page.
In default view, you present your content in a classic two-column layout: the first column is the left-hand navigation and the second column is the body of the page where you enter your text, images and embed videos. The Dafault view has a page title at the top of the page. You can also always add a right-hand custom portlet, creating a three-column default view layout.
This is a Default View page that also has a right-hand portlet with an image and a link:
The table of contents view in an ordered-list view all the headings on your web page. The table contents are anchot linked, which means that as soon as you click on a link, you will be dropped down to that section on the web page.
You can create a basic gallery of your images by selecting the thumbnail view.
If needed, you can also remove the page title and in its stead place a banner image.