Nice and pleasant color balance. The grass could be more realistic and random, as fLuppster said. It looks more like a carpet at the moment and the line between the sky and the roof is jagged.
From my point of view: The balustrade on the 2nd floor windows is to "heavy" You're using frameless glass and kill all the lightness of it with massive louvers, imho it's unnecessary. The rounded top of the fence also "falls out". House has strict forms, sharp corners and suddenly there's that rounded fence top out of nowhere :/
