What are you trying to achieve with the site; what are your ultimate goals?
You might consider removing the download larger size link, if you'd like to get these into the stock photography market. The watermark on the smaller images is obviously going to be a lot more effective...
I'm looking at one of your images; it's url is
http://www.frigidlight.com/gallery/m...serialNumber=4, wrapped up in an area tag. You might want to think about changing that... Probably no matter what you plan to do with your site, you'd like people to look at it, however they can find you? The way your html is coded, you're removing yourself from Google Images. On that note, you'd probably benefit from more meaningful page titles, too, for the individual photo pages.
I like the mouse-over left and right navigation. But it's not very obvious.
These are from northern New England? I'm pretty curious about / interested in geography, myself. I think a lot of people are. You're providing the exif data; you might think about giving a location along the bottom, too, for the curious?
You have a great sense of composition. Most of your photos could do with either more, or less, color, though. It looks like you've converted the Indiana gallery to grayscale. Some of the Lincoln Woods images are calling out for the same treatment; they're practically black and white as it is, but a bit of color changes the viewer's expectations about the whole frame.
This is my favorite of what you've got posted, with
this probably playing the second. You seem to do well with the wider, but not quite panoramic, format?
