I would start researching marketing off-site. Do you have and use a Facebook page? Blog? Instagram? Twitter? Pinterest? Those are all huge tools for marketing and drive a LOT of traffic for a lot of people. Priceless tools--and they're all free. I looked for a link to your Facebook but couldn't find one apart from the "like" button under your banner, but I'm not sure I'd like to see the page before liking it. Maybe start adding links to other sites throughout your shop--in the shop announcement and policies at the very least. And then regularly be posting quality content for potential customers. If you don't have a blog, get one. If you don't have an Instagram, get one. If you don't have a Twitter, start tweeting!
Remember that jewelry is a VERY saturated market on Etsy (and elsewhere) so you have to work extra hard to stand out or you're just going to get lost in the crowd.
I took a look at your listings, though, and I'm not confident in your SEO. The rule of thumb is usually that the first three words are the most likely to be picked up by search engines and thus need to be the most relevant.
This one, for example:
https://www.etsy.com/listing/126906561/copper-wire-wrapped-green-glass-earings?ref=shop_home_active"Copper wire wrapped green glass earings - wire wrapped dangle earrings - green glass beaded earrings"
How likely do you think it is that someone looking for that kind of earrings is going to type in "copper wire wrapped"? I'd edit that to be "Green Glass Earrings - Copper Wire Wrapped Beaded Jewelry." A lot of the words in your titles are incredibly redundant. Putting "earrings" in your title three times isn't going to make it more relevant. "Wire wrapped" and "green glass" doesn't need to be in there more than once, either. It's just redundant and not only is it not useful, but it might be off-putting to potential buyers.
I also noticed that at the end of your listing you put "Thanks for looking!" I would cut that entirely. "Thanks for looking" implies that they're just looking. Your goal is to steer your customer toward the SALE, not just checking out your items. You don't want them window shopping, you want them making the purchase. "Thanks for looking" makes me feel like it's time to move on rather than close the deal. It's a nice thought, but I don't think it's helping.
Hope that helps a bit. Good luck and keep working on your shop! Etsy shops are kind of like babies--they need constant attention to grow but it's worth it!