I think the workmanship and finish looks excellent. Your piece seems to me to have a strong feeling of balance and proportion.
However, for my money, the different parts don't work so well as a whole. It looks like a (superbly done) piece of segmented turning fastened on to nice piece of multi-centre turning.
Having said that, it's certainly a fascinating and unusual piece, which must have taken a lot of work.
Looking forward to seeing your next!
Ian