About the Galleries
In the menu bar above, you'll see I have grouped my images into various "galleries". The same image might appear in several different galleries. For example, an image of Yosemite yellow aspen would be in the Yosemite gallery, the Fall gallery, and the Trees gallery.
To avoid seeing repeat images, choose the "All" option, and you'll be presented with every image on the site, without repeats.
Remember, to see a bigger version of an image, just click on it, and it will appear in a separate window. The new window has forward and back buttons, so you can also navigate through the images using only the big window.