Here, I've used small leaves in different shapes to create interest. There's points and curves; wide and narrow, large and small, tall and short. While everything is green, that variety of scale is the only reason to look over here.
That's what I ran into on the silk quilt yesterday. A deficit of scale.
As I kept making the clamshells, I got more relaxed and the clamshells got larger. One got way large, but for the most part, I found a size I liked that I could make at a speed that was comfortable and I went to town on them. See how the clamshells on the right are larger than the echo quilting and are markedly different? When those come together, you'll be able to see where one ends and the other begins.
The quilt center is almost done. I just have that moat around the central urn of flowers to fill in with echo work. I just finished my first spool of silk thread. $6 for 225 yards. See why I don't want to waste an inch? For $2 I can get 2200 yards of coats and clark 50 weight, with a JoAnn's coupon.