We bought some plastic "cups" with rubberized bottoms to hold the wheels of the piano in place. The wheels are metal and would likely drag and scratch before rolling if we ever bumped in to the piano, so we just locked it down using the cups.
From the pictures it's hard to tell that the piano actually looks pretty good against the color of the wood floor. The camera flash really makes the differences stand out, especially the water damaged left side of the piano.
I look forward to taking a picture of the island, but it's been in use a lot lately so I can't get a clear picture.
