The police station has changed little of course. It was built in 1922 and the facade you see there is the same one we can still see currently albeit now sporting the standard grey/blue police colours. But look at the big open space on the opposite side of Canton Road. It looks to be a recent demolition to make way for the Jockey Club clinic which still stands there. Pretty much all of the older buildings you see above have now been demolished and you actually get a nice view from the opposite angle in 1973's Enter the Dragon. The last shots shows a partial view down Public Square Street showing a hill in the background that was once part of King's Park.
Here are the modern views from Streetview.
As you can see the clinic buildings now occupy the whole block opposite and the hill I previously mentioned is still there, but just now obscured by the usual high rises.