@samiyahlk I love stacks. It has to do with growing up with the women in my family wearing and rocking a dozen bangles or more on each arm everyday. What made their stacks work was symmetry. In my humble opinion, I love stacks that share some kind of symmetry and look like they were meant to be together. I would choose an anchor bracelet first for any stack. Once you choose your anchor bracelet, adding pieces that enhance that central piece just makes the entire look more cohesive. Some may find that boring but I am not a fan of anything too complicated. My absolute fave stack are the four perlee bracelets together. They work together seamlessly imo because they are symmetrical.
Or, you can add one deviant piece to the symmetrical bracelets. So, I would add the JUC to a couple of perlee bracelets but I wouldn’t add a JUC and a 5-motif together to the perlee bracelets at the same time. Or JUC and serpenti together. It just distracts and detracts from the beauty of each individual bracelet. Sorry if I am not making any sense but trying to put my rationale into words here and probably failing miserably!