If using bare copper or sterling silver, additional dimension in the link can be brought out by antiquing or tarnishing the piece using Liver of Sulfur solution. If you want a larger loop on either end of the spiral piece to accommodate bigger jump rings or connecting components, measure a bit more wire than 1/2 inch before trimming. Then roll with the round nose pliers a bit further down the plier making a larger loop.
Congratulations! You've made your first Spiral Link Connector Bracelet.