I haven't made any sales yet (my shop's less than a month old), so I'm sure there's people more experienced than I am with better advice, but I've noticed that the items in my shop that get the most views and favorites are the ones that have the most specific keywords in the tags. For instance, I have a digital print in the shop with a quote from a TV show. I tagged it with the name of the show, that it was a poster, a digital print, and other specific things (like color and the character who said the quote). I quickly found out it was being discovered by searches for something like "TV show name poster" or "poster for this tv show"- very specific searches. That print is right now my most viewed item.
Looking through your shop, your items are lovely and the product names look fine to me (although a more experienced shop owner could help more with that), but your tags are very broad. Your vintage mason jars were tagged "vintage", "vintage 1930's" and I think a few more broad categories as well. Those broad tags are very helpful, but it might help if you also add more specific tags so that your items are more likely to appear in a shopper's search results. Maybe you could try adding more tags that describe what the item looks like. What color is it? Was it made using a specific technique people might search for? Who made it? Was it a certain designer/company? The more specific, the better! If you have multiple tags with keywords that work together, that might help as well.
