Hi Susan!
I'm also new to Etsy so I don't have a lot of "great" advice for you. But I did look at your shop and noticed some of your pictures don't show what the item is in the listing. You can adjust the thumbnail photo when you upload them. Also this:
For all vintage lovers! This is a silver necklace with a locket? Carry a picture of your loved ones in this locket and show it off to anyone around! Let it be your pride and joy and enjoy all compliments on your necklace (and pictures of course!)
It seems worded a bit weird and the "?" doesn't fit. Also if I were buying a necklace I would want to know how long the chain is and maybe what type of silver necklace it is. Does the vintage wording mean it's an old item or is it new and looks vintage?
I saw one necklace that said it would be great for the little girl in your life and it made me wonder if it was child's necklace and would again want to know the length of the chain.
Good luck, I know it can get discouraging waiting for a sale!