It looks like that because there is nothing in it besides houses, trees and water. If there would have been atleast critters (cows, rabbits and other stuff) running arround it would look a lot more interessting. Think it looks rather good, and I think blizz should do something about it!
i think it looks quite polished and nice. what would've made it feel more alive would to add some moving characters into it, but that's just nitpicking XD