I have just added this to the map of places to fly your drone at Drone Scene:
Land owner permission not required.
As long as you fly above the field then you can get some very nice shots of trains going over this viaduct. And you can also get shots of Windsor Castle from a slightly different angle!
The originator declared that this location was not inside a Flight Restriction Zone at the time of being flown on 23/08/2021. It remains the responsibility of any pilot to check for any changes before flying at the same location.