First of all, there aren't really major changes from this manga and the original story from whatever book you read it from or show/movie or whatever, you get the point.
No. 1 There isn't a fairy godmother or pumpkin turning chariot event in this manga so meaning no visible magic can be seen ^^ But there are some killer doves in here +.+
No. 2 Main characters are still here though, Cinderella, Stepmother, 2 Ugly Step sisters and Prince Charming...
No. 3 This is not a children story, it is very evident in some parts of the story. When I was reading those parts I was like... "Uh... that's some fairy tale..." or something like that.
But all in all, I enjoyed it. It has an interesting twist to it. Also, they were drawn beautifully, especially Cinderella, she was pretty but rather short. Was she stil a child back then, I wonder? And Prince Charming was indeed Charming, and that really says something. I really recommend this manga. ~^^~
Go Read It! >=3