abstract grayscale greyscale iron line metal rail rails railway railway line railways sleeper sleepers train trains transport architecture coach elements embankment embankments land metallic passenger passengers signal steam tie ties track transportation way converge low perspective railroad tracks autumn Forrest HDR Nyberg garden plants rust rusty water Watering Can angles Australia central Australia country distances light long distance travel movement outback passenger service passenger train perspectives platform platforms rail transport railway station reflections rural service sleeper cabins sleeper coaches station sunlight sunshine travel urban