I agree with the other comments (except that I don't get the "ugly scrollbars" on any of the galleries, using the good Norwegian browser Opera, of course).
I would like the "Home" link on the gallery pages to be a bit bigger and more conspicuous, and having links there to the other galleries would be nice, too.
If you can figure out how to implement the Arrow keys that Jeremy wants, it would also be easy to make the Up-arrow key return you to "home".
I would like to see an "about me" link which tells us a little about you and your photography. In keeping with the spare style of your website, you probably should keep it simple and brief.
It's a nice, clean, effective website and you have some very interesting images.
Eric
P.S. It works fine on Safari, Firefox, Chrome, and Internet Exploiter, too. I do get scroll bars if I reduce the screen size a good bit. This happens first with the second gallery because the first few images are portrait orientation. I wouldn't worry about it.
I just noticed that it shows a different home-page image each time you open the site. Nice touch!