Encyclopedia of Cardmaking Techniques. I liked the idea of using the ribbon embroidery to represent the leaves and stalk, as it gave the cards some movement.
For the flower I glued an origami lily. Actually, I used half a lily in each card: I folded a lily, unfolded it, cut the square diagonally and refolded each half. It made the flower less bulky, and also allowed me to save some time.
I folded the flowers with 2" (50 mm) squares that I cut from Pacon Paper Squares - 9x9.
The lily (or iris) is a traditional origami model. The folding instructions can be found in many books and online sources .