Yeah, Ebay might not be the place for handmade products. People go there for cheap mass produced items.
But here are some things I noticed if you work on might help.
1. Youll need to read up on SEO.
2. Your photos are just okay. Some seem a bit off of center, or kind of out of focus. They can be more crisp and clean. You might want to play around with having them on models?
3. Look into social media. FB isn't all that great to reach your followers, unless if you pay for promotions, and even than, that doesn't always drive them into your store. I have gotten a decent following on Instagram and Twitter. Also, you might want to search out bloggers who might be interested in your type of jewlery.
4. Add more items. This will help you to get found.
Jewelry is a very saturated field here. Your pieces are different from a lot I have seen here. Hopefully if you fix a few things, things might pick up for you.