Lol! Looks like he did some ram editing! That's the only way to get trees like that and the buildings moved in such a fashion. There are some amazing things that can be done if you know how and have the right tools. Also, the ram editing is not able to move the stone areas - see how they are in an awkward place compared to where the Tree and the Re-Tail is?
Wow, if I did something like this I would change that river. But to each his own!
Not for me, tho! I don't have the skills or the guts.