I think your photos are average. If you really want to push sales, you need to have near perfect photos. Are you photographing with a flash? Some of the photos look a bit washed out. This can be fixed by bumping up the saturation and contrast with any standard photo editor, my favorite is picmonkey.com.
Also, I recommend photographing similar items the same way. Like these here:
http://www.etsy.com/listing/150568082/tropical-retreat-perfume-oil-roll-on-oil?ref=shop_home_activehttp://www.etsy.com/listing/150567508/pixie-dust-perfume-oil-roll-on-oil?ref=shop_home_activeYou've almost got it, except one has a peach colored tint and it's tilted differently. Details matter... especially since you're in a saturated market. Also, when I want to buy bath products, I buy based on how I want to feel when I use them. Make your pictures look soothing/relaxing/refreshing/manly... Help your customers visualize how they will feel when they use your product.
I can't critique your tags and titles since I'm not knowledgeable in herbology, but if your tags are working you'll be able to see it in your stats. Are you getting search views?