In general , these pages are designed to load rapidly and look good on 640 by 480 displays. Still, this is a compromise and you may have to scroll vertically to see all of an image.
Size is dependent upon detail.
Images will look best if you maximize your browser's window. Minimize the button bar at the top. Text and buttons will work best if you use the browser's default font. If buttons and descriptions take up too much room, try using a smaller font. Give your browser as much RAM as you can afford.