The house is just beautiful, so original... I wonder what it's like from the inside. I should really visit Vienna sometime.
Anyways, back to the shot. I like the idea, but I think that the execution could have been a bit better. For example, you could have used a warm filter to make the whole shot seem lighter and ...well... warmer. My idea of a bright orange sun is that it makes the air hotter. So yes, there shouldn't be that much contrast between the sun and the sky.