I sort of turned the challenge around (which I hope is okay) and instead of beading across a horizontal centerpiece, I used a focal that was ALREADY horizontal and beaded around it.
Okay, I may be a bit obsessed with the leaf. Moving on.
The sides of the necklace are brass chain with peridot and amethyst chips woven through the links. The purple and green pick up the colors in the dichroic leaf centerpiece.
And one last picture of the whole piece. Y'know, for something that, at one point, I wanted to throw on the ground and jump up and down on top of in frustration, I'm REALLY happy with the way it turned out. The colors are gorgeous and the gemstones and art bead both really glow.
I'm calling it "I Heard it Through the Grapevine."