Thank all of you for your help :-) I've been working and reworking the scene all day. To be honest its not that much better :-( I think the exterior needs a completely different texture... I tried 40 different atmospheres, and changed the point of view. Pulled back and up. Still not satisfied. Added 25 trees. Added rocks at the base of the terrain. I'm on a final render right now - maybe I will post a small render of it here later. For your feedback.