On the Epsonality website there were numerous examples of symmetry throughout the site. The man on the left working on machines is perfectly lined up with the desk and machinery on the right. After you calculate your "Epsonality," there are five floating devices that hover in symmetry over your calculated epsonality choice. All five of these floating devices are in the exact same shape. We also see the printers at the bottom are all sitting on the same platter shaped platforms as the other.

On the Pretty Loaded website, I think it shows symmetry and asymmetry. The top consoles are all lined up, yet they are different sizes. The center of the site is lined up with the icon displayed loading. Yet at the bottom left, the description of the site will show up in different shapes and is no way lined up with the top. It makes great use of the space and lets you focus on what the site is all about- which are the icons and animations loading.