So I'm about to get a Canon Rebel XS/1000D and I know some people edit their photos after they take them. I knew this person from youtube (SupaDupaFlyGirl) Some of you may have heard of her, others may not have. But the point is she has a Flikr and I think she takes amazing photos. I was wondering if you can tell if they're edited or not? Is it an effect on the camera that gives that colour or is it the edit? (She has a Canon Rebel XS) If they are edited, would any of you have an idea of what program she used? Photoshop? Or something else? Or if you have no clue if they're edited or not and don't know what she would have used but know of some good free, downloadable or not too expensive and not too complicated programs then can you possibly list some? 
I'm currently using picnik.com but its not that great. Thank you!
Oops! Forgot to add the link!:
http://www.flickr.com/photos/supadupaflygirl/
I'm currently using picnik.com but its not that great. Thank you!Oops! Forgot to add the link!:
http://www.flickr.com/photos/supadupaflygirl/