In Animal Farm, to what extent does Orwell succeed in decpiting political leaders of USSR as animals instead of just writing a political essay?

In Animal Farm, to what extent does Orwell succeed in decpiting political leaders of USSR as animals instead of just writing a political essay?

In Animal Farm, to what extent does Orwell succeed in decpiting political leaders of USSR as animals instead of just writing a political essay?
In Animal Farm, to what extent does Orwell succeed in decpiting political leaders of USSR as animals instead of just writing a political essay?