I like this - the grey tones & silvers blend together well but they also contrast enough to bring out the detailled work of the door and the framing Angels. The Angel of Summer holds Promise, the Angel of Autumn weeps.
wide crop (pano, is so why?) still doesnt crop out detracting elements at far bottom of image; tighter crop would work great, imo. door too centered? love the tonality and the general concept here. gl