The way I see it the parts of the photo that are part of the (main) subject, the parts you want to show and focus(!) attention on, and that the eyes of the observer wanders over should be sharp. So the front plate with the salad I'd like to see all sharp. The plate in the background is just more of the same and can/should be blurred.
When I looked at the front plate in the first photo I was made aware of the blurred parts. That was a distraction that shouldn't happen when I let my eyes wander over that main subject.
The slices of bread were also part of the main subject. If the fork there would be blurred if all the food on the plate is in focus that would be ok in my opinion. It's the food that is the subject here.
So the second photo of the salad is much better. If you want the rear plate to be blurred more you can change the distance and zoom to achieve this.
The meat at the rear of the bowl of soup in the second series is also just a smidge unsharp it seems. I'd like that to be sharp too.
And the third in the second series is ok as far as DOF is concerned but the angle is perhaps a bit too strong. You don't want to make people feel inclined to tilt their head. That defeats the effect of shooting it at such an angle.
But it all looks very tasty!
When in doubt..... Press the shutter.