Yup, looks like they edited this photo from Wikimedia: https://en.wikipedia.org/wiki/File:MarsTransitionV.jpg

It clearly is. Damn, that's cool!

I honestly wouldn't be surprised if Elon Musk had already started thinking seriously about that phase of the colonization project.

When you walk into their office and go back towards the area where Elon's cubicle is, the same photo of the terraforming transition is blown up on the wall: https://www.flickr.com/photos/44124348109@N01/9848295393

Their company mugs also have a heat sensitive image of Mars that terraforms itself: http://shop.spacex.com/accessories-81/occupy-mars-heat-sensi...

Elon is ::definitely:: already thinking about the colonization phase of the project and has taken steps to highlight it to the company and the public.