I did some simple background quilting in two of the panels with straight and diagonal lines. It's hard to see in the photos, but I think it has just the right amount of quilting.
Here you can see some of the lines in the bottom panel. I edged the "wires" and the borders with some topstitching close to the seams.
When it was done I added black buttons for the eyes and some vintage buttons to embellish the wings. I gave the center bird two eyes to give the wall hanging a bit of a quirky feel. What do you think?
Finally, here's a photo of the birdies hanging in my sitting area off of the kitchen.