For SEO, always put what the item actually is in the 1st words of the Title (e.g. instead of "Silver Jellyfish Earrings- Amethyst, Peridot, Apatite, Green Onyx, Metal Work with Gemstones", I would suggest " Earrings - Silver Jellyfish with Gemstones").
As for backlinks, post your shop anywhere you can find! Wanelo.com is a great place, also try weheartit.com, craftjuice.com, plumdrop.com, stumbleupon.com, and put an ad @ Craigslist.com.
Hope this helps - Good Luck!