Hello bahadir - and thank's for the explanation!
As always, you have a lot of improvements to suggest and a lot of tricks up your sleeve. I really appreciate these kind of tips, because as a relative newcomer to pp I wouldn't have guessed that its possible to do, what you have suggested and done. It really improves the overall-look of the picture.
First one must learn HOW to do improvements before you can decide WHICH improvements to use in whatever situation. So, now I know, and now I'll try just what you suggested.
Thanks again, bahadir!