Hi Jack, AlanF, Maximillian.
This is exactly my reasoning for asking, PP is such a subjective thing. I had a notion it was too much after viewing the processed pictures I posted to Flickr on my iPad.
Alan, I was using the 5D, not the 7DII, I guess this would change the numbers you might use, also as I am using DxO 10.?.? I don't know how it would relate to settings from the software you have given. Plus as I said they were harsh crops from the 12Mpix of the sensor, approx 4Mpixel each.
I was also using a pretty mediocre laptop screen whilst trying to be sociable with the misses instead of going and using my desktop (with a better but still not perfect, read less mediocre, monitor) in another room!
I will try again with less sharpening using my better PC.
I was using a bit of +micro contrast, a bit extra lens correction general sharpness, a bit extra lens correction detail sharpness above the preset levels, (both under the same tab) plus some extra unsharp over the preset levels.
The composition was from a slipway, the tide was about half in (or out) leaving me quite high up the slope, I did kneel down to lower the perspective but this was not a planned photo expedition and I was in reasonably smart clothes.
The more distant background is cluttered with decaying pier structure which whilst interesting in itself is not conducive to the improvement of a swan picture!

I will try cutting a bit more foreground off, (but you can see from this how slippery it was!).
Thank you all for your input, I welcome constructive criticism for without it how can we progress.
Cheers, Graham.