Watch: Now this is pretty darn cool.
Watch (in GIF form) the evolution of the iconic Star Wars AT-AT. From early concept images, to the newest iteration unveiled last week, the AT-M6 from Episode VIII: The Last Jedi.
Here you can see the early concept image, concept image, original trilogy AT-AT, Rogue One AT-ACT and finally The Last Jedi AT-M6.
The animation was put together by the guys over at partcatalog.