Border and Corner

I have completed three of the four borders of the newest project. Once I get the fourth one done I can attach them to the center and miter the corners. Below is what everything looks like now, unsewn, with my idea for the corner treatment inserted.

The leaf is the same as on the antique blocks but with a reverse applique center to allow the insertion of another fabric. That's why I am adding acorns to the corner as well since I want to bring in the foulard print fabric from the sashing.