Hello Carola,
I'm relatively new so I do not know if my critique will be that valuable.
First of all nice items, I think your jewelry is lovely. However I do think sometimes your pictures don't do your items justice. What would already help if choosing a consistent background, putting a white paper sheet under all your photographs will already help. (not sure if you already do so, but try to go with a non grainy paper sheet) You can also try to think of something more unique, I like how your put your earrings on the same green cup. This gives uniformity and also represents your unique style. What I alo see is that not all your photographs are the same shape, some are not square. I think it would help if you make all your pictures square. Try adding your logo, in the corning of each of your pictures. That makes it look more professional.
Wish you the best of luck.