I think, but strictly my opinion only, that upping the quality of the beads would improve your likelihood of sales. I checked out some of the linked etsy pages and the ones with the silver beads look more professional than yours, which to me look more like a craft project. I know there is skill involved, but to me I see a pinterest page that will spur me to make my own, not buy yours.
But regarding pricing, I would add up the total of your actual cost, add in your hourly charge, and double that. So if you've got $10 in beads and it takes you 15 minutes to make it and you charge $20/hour that means you should sell the bracelets for $30. If there's no market for it at that price, then you probably shouldn't bother. And you can reference the Big Bang Theory episode with the Penny Blossoms for a further explanation
