There's too much copy & paste. Just look at some of the winding roads just north of where the city fades away (!). Also the small town in the top right and the same one south of it. There's more like the one eli pointed out, copied from the city and put in the countryside, but I won't bother pointing them all out.
I saw this on a couple of other sites and I don't know why it's getting more exposure than any other fan map.