Photos are key! I would try searching for your items from the main search bar to see what they look like next to other listings. Do they stand out? Are they too dark/too light or maybe just feel flat?
I think that photos can always use work - especially as a new shop. I am always trying to figure out a better set up for mine.
I would make sure that your background is not wrinkly. I think a crisp backdrop makes photos look more professional. I use an old shelf and mat board on my kitchen table in front of a window. I then use a free photo program to crop and adjust settings. Nothing fancy but it helps with lighting.
Since your items are small I would encourage you to build a lightbox or better yet set up your items in front of a window. Play with staging and look at other product photography to see what draws you in.
I did a quick search for bracelets and found two good but different examples:
http://www.etsy.com/listing/94484807/swarovski-double-wrap-leather-beaded http://www.etsy.com/listing/115973631/turquoise-beaded-leather-wrap-braceletI think necklaces are a bit harder. I like to see photos on a mannequin or person so I can better judge size. For the detailed shots I would make sure that the cord/chain is laid out nicely, maybe try using a prop like a branch or stones?
Best of luck! Try a lot of set-ups and you will eventually find what works!