When you click Edit not only can you add a new section but you can also click the side arrow top right. This will cause a box to pop out. This contains suggested designs.
(The text and pictures can be edited - the point of this code is it enables various styles to be applied to your website quickly.)
There are lots of styles to choose from you can scroll down a long way.
Some of the examples allow you to upload a square picture and website code will convert that in to a circular picture.