Leave it and let her adapt. Otherwise just give her her dumb phone back. I don't see the point. The S3 is probably HUGE compared to her dumb phone and much more complicated to use.
My wife came from a dumb phone to a Lumia 620. Took her maybe a month to adjust. I just let her use it, and over time, I point out features that she can start using to make life easier. For example, stuff like the calendar and grocery list. She was all about physical record keeping (like physical calendar, making a paper list) but as time went by, I started pointing things out to her, about how much easier it is to just do it on the phone, how I can immediately see changes to her calendar, how she can instantly share photos with the kids while she's travellng, etc.... After a while, she got it. Still a lot of things that she doesn't really think about, but mostly, she's adopted it quite well.
You have a couple of photos that are great... you must be very good at photoshop!