Points to note here are:-

....the darker area running the length of the apex of the canopy of the train shed are in fact solar panels....the only grade 1 listed building with visible solar panels apparently.

....through the arch from left to right are the end of the granary, the old station /goods yard offices and the west canopy which was the fish shed.

The bridge from where the image was taken was a new one...it replaced the original that is now used as a viewing platform for the preserved railway "The Watercress Line" in their engine shed yard. this was part of the Historic England's influence and Network rail had to dismantle, prepare and deliver the old bridge to the site in Hampshire as part of the approval for the new bridge.