I finally had time to go back and make a few adjustments, to "tone down" the processing a bit. I think this fixed the problem. Thanks again for the hint, Michael.
I appreciate the comment, Michael. I did make use of that filter, and perhaps I did overdo it a bit. I'll see if I can clean it up a bit. Thanks. Charlie
Charlie, on my calibrated monitor I'm seeing severe posterisation in the foreground. I had a quick look on my monitor at work though (which is not calibrated) and it's not so apparent. Is this something you have done deliberately? I hope you don't mind my commenting on it. Regards, Michael