evolution of a design

I've been trying to get into better shows with my beadwork, and while I'm improving, I'm still not getting into some of the shows I want to ( as if that isn't always the case).  Part of my problem is that for years I've been applying to shows, with the rugs, in the fiber category, which is generally one of the less competitive categories; now I'm applying in jewelry, which is always one of the most competitive.  Anyway, I've been using the oxidized copper tube pieces, because I think they're the most uniquely my work.  But I wanted another piece with some color, and since some of my pieces are rather irregular, I wanted one that was more controlled.  Hence the top piece.
  I like the piece, but, for a jury shot, I thought maybe I had moved too much in the direction of repetition.  I wanted a piece that was controlled, but

not quite so predictable.  Also, although I had color, still it had a lot of browns and neutrals.   I decided  I wanted to make 3 changes:  more color, copper tube pieces that were octahedra like the ones in the first piece, but irregular octahedra, and more interesting shapes than the ovoid ones in the first
piece.
     The second pic shows me playing around with shapes till I got one I liked, sort of a fat crescent.  Incorporating the other changes gave me more the sort of piece I was looking for, controlled, but just s bit unpredictable.  I still have to work on getting a better picture of the new necklace--it's really brighter than this pic makes it appear.