As for the floors, I have decided to alternate rows of black and white, something like this picture here.
I have come up with a plan for the far wall, which the island used to run on. I am going to move the one shelf adjacent to the other and mount a pot hanging rail system underneath. I drew it up on AutoCAD to see if it works. I think it's the perfect scale and look that I was after. I originally thought about a narrow shelving unit but I think this will free up cabinet space and leave that area open.
I am going to use the IKEA Fintorp system, I have used it before and it's inexpensive and works well.