Thanks Colin, Peter & Allan for your time, tweaking and input
My bad - when I first looked at Diego's processed result it was on my laptop & I though it was too yellow - so I made it bluer.
Revised version using my corrected monitor
HERE 
Lewis, getting the files to Diego killed all of my dropbox space :
- had to clear everything to get 7.5GB of data to him - re-posting will have to wait until I upgrade my plan.
