Scorpius is standing upright "on its head" on the left facing the horizon, very much like it does at the moment when it appears of a night. Suggests the ISS is somewhere over the Southern Hemisphere. The reddish star between the solar panels is Antares. The spout of the "Teapot" asterism is just above the Sagittarius Star Cloud, upside down.
The ISS foreground looks quite sharp for f/1.4, which hints at the dimensions of the thing.
Awesome shot, and awesome find.