It appears your placements are set, and there is nothing really wrong with them. Were you thinking to swap the fridge and ovens? It may help to have a larger view to see where your entertaining areas are but it looks like an eat-in dining area at the top and that means the fridge placement is good. The only thing I could think of is moving the ovens to that cabinet straight down from the bar.

I would move your wall ovens to that cabinet as well as they seem to break up the counter space around the stove. You can never have to much counter space by your cooking areas. I might even move your stove down a bit so there is more room on the fridge side. Maybe center your sink?

The wall ovens are in a very bad spot; it violates regulations. You should not have a tall cabinet breaking up a span of counter like that. I would move the ovens to the small area to the side of the island.

And center the sink and move the cooktop to where the ovens are drawn.

The sink and refrigerator are two major traffic areas and the ovens are not in a good spot. So first, we would move the wall ovens to the small area left of the arch doorway. Second, move the cooktop further down away from the refrigerator. Last, move the sink left on the island so the refrigerator isn't directly behind it. It is nice to have the sink and faucet centered on the island if you are going to have a couple of pendant lights hanging above. Once you make these changes, you should have room for a lazy susan cabinet in the corner. It provides better storage than the way your plan is currently drawn. 12' ceilings-nice! Good luck with your project.