Continue to work on your tags and photography. 30 sales in the first year is still pretty good and not something that you should be down about. I find some of your pictures distracting. You need to be sure that the item for sale is the showcase and not the model or some other aspect of the photo. If the eye is being drawn away from the item you've lost the sale.
For me, just the first page of your shop is a bit overwhelming. There is a LOT going on and no one style of photography. It makes the shop seem a bit haphazard even though the items are in the same category. I think it would help if it was a bit more streamlined.
As far as tags go, I checked out a few of your listings and I think you could probably tweak what you have a good bit to increase the number of views you are getting. You use a lot of single words as tags. You should consider using phrases (2+ words) that a prospective buyer might use in order to find your shop. The words/phrases that you use in your tags should, for the most part, also appear in your title and in the description. This will help your items come up in search more frequently.
If you aren't already, be sure to add new items and/or renew items regularly. This will help to boost your relevancy...meaning you'll be on or close to the first page of search.