Nice site Susan. The first thing you need to remember about traffic is "words" - search engines are optimized for textual content.
First, try changing the title (what shows on the title bar) to reflect what the site and individual page is about. Something like "Susan Kopecky - Fine Art Black & White Photography" or "Susan Kopecky - Fine Art Black & White Photography - Kauai Image Gallery".
Second, your image links need to direct to a new page, not display a larger version of the image. When I click on Kiluea Lighthouse, display a page, with a text caption (not on the graphic itself) that the search engine can read.
Your site needs a few tweaks that are easily done that could increase your traffic. I get around 1500+ per day on mine.