I like them! They're not distracting since they're all in the same color palette, and it gives your shop a sense of calm, peaceful luxury. It draws me in!
I've been having the same concerns as I have been changing the look of my shop. Your shop looks wonderful! The textures are not distracting at all and the overall feel is a tidy and relaxed.
I love the shop!!! The jewelry looks amazing and I love the photos, backgrounds included. My only thought is that your model looks slightly miserable. Wouldn't have noticed unless I was critting though. :)
Your pictures are beautiful. Don't change the backgrounds! Like everyone else said, it's a very tranquil feeling. My only issue is that I like to see the entire product in focus in the thumbnail, and as an example: https://www.etsy.com/listing/150921341/blue-swarovski-crystal-drop-earrings?ref=shop_home_active This one isn't a good thumbnail...and in fact all the photos for this set of earrings is very blurry...also, why is the last photo showing a totally different set of earrings?