Thanks Peter and Stu for your good words. I have kept the processing to a minimum to avoid harsh contrasts. I would be happier with a crisper picture though, but I don't think the webcam is able to deliver that. I would have to move on to a better camera.
At this stage I am considering the DBK 21AU618.AS or the DBK 31AU03.AS (still saving!). In your opinion, is there a significant difference between the two?
Cheers,
Eric
Edit: for a great picture of Copernicus look here:
http://moonscience.yolasite.com/wac_mosaics.php . Simply stunning!