Hi Andy. If I may comment? Food is tough. But I would have tried to get everything in the focus field, perhaps a smaller f/stop? I think 1.8 is way too wide. The color is good though. Did you enhance that? Perhaps for this current shot, can you "sharpen" post-shoot severely? I think that would help. But the original focus field decision probably can't be corrected completely.
(Must go get me some salmon soon....)
Cheers.