Love the mixture of bold greens with soft pinks. I think this is a very close second place. It has a good mixture of textures/shapes to the flowers. It might need slightly more pink flowers to even out the green tones.
Such a great idea for place cards and an even better idea for a favor that people might actually want! Use the leaf and acorn place cards on the lanterns instead! This is magiacal and beautiful. maybe-i-should-have-one-of-these-wedding-boards-to