Impressive house! Looks like something from a spooky movie.
I'm interested in your choice on HDR, in your opinion what does the HDR add to this photo for you? One feedback I would have is that #1 looks a little overexposed and the highlights are probably clipping (which would be a histogram which touches the right hand side of the scale).
#1 is very well frame, I like to take front on architecture shots like this myself. It's a very technical and symmetrical angle.
Nice shot and lovely place. Bit tight at the top for me in the first and would be good to see some more of the sky to set off the brickwork. Looks like a place near me in Belfast, Ireland. The Belfast Castle , I will post a few shots of this soon