Hi,
I don't have time to read all the tips that were given to the forum. I am sure this one will help in making special fx.
http://en.softonic.com/s/adobe-after-effects-free-download-full-version
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led me to photoscape free latest, which is good for tweaking stills.
But see this short video :-
https://www.youtube.com/watch?v=Lipq8cgvBek
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Phwooorrrhh! So many treats!
I tried Wax and Wink, and they take some learning, but they are great!
Later, Guys...
themightymekon