Hi, I'm new here too. I just browsed around your shop and noticed a few things. You have nice items and the layout looks good but some of your pictures are really blurry. Do you have a macro setting on your camera or can you borrow someone else camera that has macro? And you want to be careful using a flash when photographing shiny objects because the reflection can distort colors in the image. I would also try to stick with the same color background for all of your items so it doesn't look as cluttered.
Under your banner in the description you might also want to tell people what you are selling (i.e. vintage jewelry, handmade jewelry, collectibles, vintage clothing...etc)
In summary I would retake some photos with a camera that has macro capabilities, choose same color background for photos, and add a description of the kinds of items you are selling underneath your banner.
Hope that helps a little. Good luck!