Found this sculpture and took these pictures a couple of weeks ago.
This picture was taken at Nevill Holt and this sculpture stands proud in the grounds with an amazing landscape backdrop. I think it must be the same as the one in London at Marble Arch by Nic Fiddian -Green and apparently one has been sent overseas to someone in America as well. Inspired by his own horse George and cast in a Liverpool foundry.
(The sculptor recently had himself hauled up in a cherry -picker to clean the pigeon droppings off the one in London!)