The main house of the Whitney Plantation on the German Coast (along the west bank of the Mississippi River between New Orleans and Baton Rouge, Louisiana) is done in the Creole style. An itinerant painter worked on many of the fine plantation houses in this area. This is an detail of the faux marble on the exterior of the house. It is original to the house and has been meticulously cleaned and restored.
The pillars on the upper gallery are painted to resemble marble. Interestingly, only the interior surface is treated this way. Both sides and the outer facing surfaces are painted white.