Mansion - matte painting

 

Here's the finished product.
I don't like the blueish color of the mansion so I chose it to be grey. It kind of makes it feel it's haunted or something. as you can see I added fog and a bat swarm (Upper left of the house).
I used a black and white gradient for the fog. You might not see it but it is black and white.
and I used these brushes for the bats.

FULL SIZE