Next, I added molding and trim.
You can do whatever design you want, I decided to just make squares.
I used the pvc trim for the smaller trim/square in the middle. You just cut to your length and cut at a 45 degree angle so they fit together.
I always put on nail in the corner and then make sure it fits correctly and is level before I put a nail on the other end.
Then, I put 1/2X4 mdf for the actual molding on the corners/bottom and top.
Next, I added the small trim cut the 1/2X4 mdf to just an inch to the bottom of the island. I wrapped the small trim around the 1/2X4 as well at the front to make a smooth transition.
I then filled all my holes with wood filler, waiting till it was dry and sanded them down.
After that, I caulked everywhere that needed to be caulked, all the seams.