Generate an image  of a serene  Australian winter wonder land scene ,  featuring a snow -covered Sydney Opera  House with gentle  snowflakes  falling from a  soft, blue -grey sky,  surrounded by frost y euc alyptus  trees and a  frozen harbour with  a few sail boats docked , incorporating warm  lighting and a  sense of tranquility , with a  color palette inspired  by the works  of Australian artist , Frederick McC ubbin.