I love the twisted hooks in the upper left quarter. I've used a similar technique with larger hangers. And let me just say your idea of offsetting the mounting holes on the self brackets is damn near genius. I wish I had taken a closer look at these a month ago when I did a sign hanger.
Generally speak, I think all of these pieces are attractive and they look well made. Nice work.
Lol.. I have always notebook near my computer and start sketching hinge and joining ideas or some other structural details if i find interesting metal works from online.