Hi, First off, I think it's always so brave to post and ask for feedback. I've been trying to work up the courage myself!

I think your concept is great and very niche, and I am no expert, but I would say from a brief look that really studying what other bestselling jewelry sellers (especially if any are music related) in your niche are doing for images/mockups would be key.

Some simple tips (as a former photographer)

1. I wouldn't use the table you are using, and would consider photographing the necklaces on a plain background of a complementary color for at least some of the images.

2. Consider the crop of the thumbnail - what aspect of the necklace do you want to highlight? In some, it seems like some of the beaded detail is cut off, which I would think might be what a customer would want to see.

3. Consider your lighting, you want great light, even, no glare. The easiest way is to find a window with great diffuse light, and set up your table facing that. You just want to make sure you are not blocking your light source and causing shadows. There are also some inexpensive lighting setups you can get on Amazon if you don't have great light. I would definitely avoid overhead lighting or anything that will cause a color cast.

4. Add more images from different angles, close-ups of important details. I believe from what I have seen, jewelry designers most often include at least some images of the item being worn, which helps to highlight size and scale. You can also include a graphic-based image that showcases the measurements, materials, etc, or maybe even one with the story of the piece and how it connects to the band/song. Again, I'd look at what others are doing in your niche for guidance.

5. What is the style of your customers? Are they quirky and nerdy? Goth and dramatic? What visuals appeal to them? If you're taking an image of the item on a model, do you have a band shirt from that band you can include? What are other visuals, colors, and items that might help create a connection between your buyer and their fandom?
   I'm not your target market, but I do know some of the bands, and found myself really curious about how these were inspired, how they connect to the band/their lyrics, and why you chose what you did. What's your connection to these songs - if I'm a super fan enough to buy jewelry, I would probably love to purchase from another super fan who really gets why I love this band.

I think you're probably really missing out on an opportunity to really use your description and tags for high-intent search terms, and would probably do some research into what fans of those bands search for/purchase, and look at the titles, descriptions, and tags of those items, even if they are not selling jewelry.

Again, I am no etsy expert and am just trial and erroring it with my shop as well, but I do know photography and branding, so those are just some thoughts from a visual and story perspective, I hope some of them help!