First Lois it's beautiful. I don't like to give advice every designer sees and works differently.
I think the beads on top of the chain would look better if they were a little smaller, unless they are. I can't tell from the picture.
I agree with Dagi, the overall look would look better if it had a graduated effect. Bigger beads in front getting smaller in back.
Lois your instincts are good, I think you know best.
jeannie