Wow... great ideas....
Let's see...
Seasons, Tree of Life, sun/moon/stars, use greens, use of black and white backgrounds. YES She LOVES blacks and white. I didn't realize that was part of it. Celtic knots are interesting. I don't know if she's into those or not, same thing with druids. But they are good places to start with. Thanks for the links, I'll look those up. Handfasting is a good idea too, although she doesn't practice like medieval stuff, there's bound to be some great info there too. Thank you all! I can see that there's a lot of imagry with this. All good stuff.