I first picked a simple graphic and printed twice, on plain paper and cardstock.
I added a personal greeting on the cardstock copy, tore the edges with a ruler and used a Scor-Pal to score a half-inch horizontal/vertical grid.
Another version is to add quilled flowers to the card.
One of my favorite techniques is to make puffy paper flowers. I cut out the three flowers from the plain paper copy. (It's best to trim slightly bigger than the print.)
I place the cut flowers upside down on a piece of thick craft foam and burnish with the round end of a marker. Next I burnish around the edges with the ball of an embossing tool. The finished flower will be in a bowl shape. Turn the flower over and press in the center to shape. I glued the centers of the puffy flowers to the card as shown, and added a gloss accent to the centers.
Here is my final handmade card.