Here's my humble opinion, speaking from one jewelry creator to another: I like the coral backgrounds, as they show off the cut-outs of those items. That feature is what you're really trying to show off, so go for it. As for cohesiveness - as long as you use that background often enough that it is a regular feature of your pages, I like it. As for the photography, I do agree that it may be over-exposed and doesn't justify the beauty of your items. But I am still struggling with photo issues myself. Jewelry isn't as easy to photograph as it would seem. (at least for me!) As for the unicorn - I think that it is a clever addition. I see it is in your banner, plus it goes along with your shop description within your banner. A unicorn is an odd fantasy character, and the small statue you found is also unique! It is quirky and so is your jewelry! So I say well done on that theme! Am I on your same wavelength?