Surfaces on Aluminum

While working on the design for this year's holiday card, we considered may possible color combinations.  In the end we settled on a piano black finish due to the popularity of the finish in the marketplace.  However, we thought you might like to see some of the other colors considered and how simply changing one color altered the look of the holiday card.  Traditional red and green colorways were considered along with an elegant warm-white finish.  Which is your favorite?  What other color combination would you have tried?