If you know someone who speaks fluent English, I would highly recommend that they proofread your listings. That listing description makes no sense. Also, your pricing must be an error, you are selling that beautiful necklace for only 20 cents! For jewelry, I would also like to see at least one photo with someone wearing the piece. Make sure you also include dimensions of the chain and the pendant, again, this is where having a model will help people know the size.
Your tags and titles need to reflect each other. Use 2-3 word sentences for your tags. Think of ways people may search for your item. And lastly, just keep adding items. I started to notice an uptick in sales around the 50 mark.