You've made my day with your lovely sculpture. I recently had similar idea for a concrete totem pole with pieces that can be rearranged vertically, but of course not as delicate as your beads. Just one suggestion: if you sell a piece like this, you should consider using non-corrosive stainless steel for the metal parts, instead of the iron rebar, unless you want a rust effect.
I appreciate your comments. I did spray paint the rebar black with a rustoleum spray .. we’ll see how that works. The frame was out all winter and still looked fine...so far, so good. I would love to see what you do with your concrete totem!