Thank you all..
@ skieur/The_traveler: Now I do see the green tint.. however when I was working on it I didn't! It seems your eyes minupilate the results when they are tired

Thanks for the edit. On the other hand, I am really confused now.. I have concluded earlier that it is fine to cut off "the brain" but never the chin, that is based on some reading and looking at alot of photos in magazines and the net. Now, what I did was not exactly proper.. Ideally speaking, is there some clear rules for framing such portraits?
I agree that exposure to any off-tint is gradually deadened by one's eye/brain. When editing I always keep the original as a layer so I can shut off the other layers quickly and flash back to that one. I think that tends to keep my eye 'alive.'
re: cutting the head a bit. The problem I have with this particular instance is that, by cutting through that area where he is starting to bald, it makes me wonder what is happening above.
If he had a full head of hair or was obviously bald, it would have been less of a question and less of something that attracted my attention. That is a totally un-photographic response, I know, but it is how it seems to me on reflection.