Your pictures are nice and clear with minimal distractions which is great :) A couple of recommendations I would make are:
Beef up your descriptions. Describe the materials you used to make the pendants, the colors, patterns, etc.... these are used as keywords when people search. The same keywords should be included in your title.
Make tags keyword phrases. Imagine what someone who is searching for a pendant would look for; they probably wouldn't search for black on it's own, but they might search for black glass pendant or black pendant.
Good luck and looking good!