I know it's ironic but on a website words are the most important element - even when you sell beautiful art. So much for a picture being worth a THOUSAND words!

Work on the copy and everything else should fall in place for you. The only other suggestion I would make right now is to use larger images on the Home Page. Really hit people with the "wow" factor. Perhaps 2 rows of 2 (so 4 images in total) that rotate every few seconds. That will get people's attention. Then have strong copy to convince them to go deeper in to the site.

Feel free to update this thread if you'd like me to take a look at your site once you've made some changes. I look forward to seeing what you do!

All the Best,
Jennifer