It’s the details that make these models of Stonehenge really pop. And the rusted patina brings them out. All I do is dip the cold cast iron models into vinegar and salt and after a few days lightly, rub down the model with my fingers, The grease from my skin makes the raised parts of the model sing, while the recessed depths stay rusty.
Some more renders in light rust at 76th scale. 8.3cm or 3.3 inches high (T2) x 59cm or 23.2 inches in diameter. The base will not be as thick as this.