Hi Samantha-
I'm no expert either, but here are a couple suggestions. First, I'm told that the first three words of titles are the most important when it comes to searches, so it might be worth revisiting those. You don't want to separate common search phrases- for example, in this listing -
http://www.etsy.com/listing/78893852/original-abstract-whimsical-painting - the title is "ORIGINAL Abstract whimsical painting". You can probably rearrange that to be "Original Abstract Painting, Whimsical etc etc" and the search engine might put you as more relevant if someone searches for "abstract painting." There are lots of threads about relevancy in the general forums, but that's one major tip I picked up.
Second, since you make paintings that people would hang in their home or office, it might be a good idea to find some staging locations where you can temporarily hang the piece on the wall and take a photo from a little ways back- seeing the art hanging in a potential setting might help people envision how the artwork would look in their own home. Your close-up shots are great, and definitely keep including them too. Sometimes it helps to put the piece you're selling into the setting where it would hang!
My last suggestion is to work a little on your shop policies. There are some typos and mis-spellings (we're all guilty of it!), and those make the policies look less professional. In your shipping section, you say you ship "as soon as possible", but could you narrow that down to something more specific, like "within 3 business days"? Having concrete time frames helps a shopper feel more confident in a shop, and you can always throw in the line saying if there is any delay, you'll contact the buyer and they have the chance for a refund if the time frame you can offer doesn't work for their needs. Have you looked for other shops selling the same type of items as yours and looked at their policies? It's worth checking out, since a really professional policy section helps build trust in a shop, which is critical for ones that have just opened and don't have a ton of feedback yet.
If you're looking to build up feedback, I also recommend making some purchases yourself from other Etsy sellers! Etsy doesn't separate feedback from making purchases and feedback from selling items, so you can always start building a reputation here that way. For me, it's nice to know that a seller supports the Etsy community and is a buyer here as well, so while some people might say buying items to build up feedback is misleading, I think there are valid reasons why it's not.
Anywho, I'll stop rambling now. I sell jewelry, which is very different from your artwork, so take everything here with a grain of salt! Good luck :)
