Someone from Your Garden Show (a great site for gardeners) asked me how I made this particular design, and I thought others would be interested in it’s construction too.
This image is made up of 2 actual leaves.
One is the dark purple one, the other is a leaf that is just emerging and is folded in half. The folded leaf reminds me of the hearts I made in elementary school where you drew half the heart on a folded paper and cut it out. I use Photoshop for all this work.