Thank you both. And thanks in particular for the positive feedback on how the site works, as I've given a lot of thought to it and chosen it over other designs. There are many professional photographers whose work I admire, but whose websites I don't particularly like. They often have the same overall look and feel without much individuality. Ironically, the links to their portfolios are often text-based with no imagery until after you click on the link. Then you frequently encounter "flash" webpage technology (no pun intended) with fade-ins and fade-outs that can take too long to "get there." I think it makes it difficult to get an overall sense of their work without clicking numerous links and not knowing what to expect.
I opted for this design's rather different functionality because it makes things accessible relatively quickly using a layered approach. The first layer is comprised of "albums" that can be scanned without even opening them (by dragging your cursor across them). The second layer is the mid-sized thumbnails shown after "opening" an album. The third layer is entered by clicking on the thumbnails to view enlargements or to view a slide show of the entire album. It strives to give the visitor whatever access they want quickly, and with relative ease. I hope it accomplishes that.