No matter what updates come along, some of the basics don't. You want to get found and search engines will use titles and descriptions when it comes to selling. Search engines can't see pictures. So it comes down to what you say about an item.
The title is the first thing a search engine looks at. You want a title that includes words people are going to use when searching for you item. People includes those who don't know about your craft or how it is made.
This pendant by JKADesigns on Artfire is really stunning. I notice the blue and amber stripes and an iridescent quality about it. I am more interested in how a pendant looks more than anything else. Although when I saw the title "Fused Glass Dichroic Pendant", I realized I may never have found this pendant.
Another big one is "handmade". Except in cases where it defines a product -like handmade soap- it usually doesn't add value to tem in search. Very often it can come down to trial and error. Your description should do this as well but it starts with your title. If you are unsure, show your item to someone else and listen to how they describe it and what they mention. Do a test by changing the title for a month or so to see if views improve.
SEO is all about getting found. To do this you need find out what buyers are searching for - beyond what the item is, are they searching colors, style, shape, material. Sometimes material counts- gemstones are a material that can make a difference, as can wool vs, acrylic yarn. As seller you need to figure what the buyer finds important, not what you find important.