I did it! I didn't find a download button, that would be too sensible. But I did find a picture of an arrow slamming into a wall, and that turned out to mean 'download.' I clicked on it, and   somehow that led to the appearance of a box with a jpg in it, and I printed it.

Thanks to both of you.

Take a look at the first cover, which shows Jeeves holding up a key. Notice the order and tranquility of the many straight lines - the window bars, the door frame, the creases on Jeeves' trousers, and even the trash can, whose ribs manage to resemble the grooves on a Greek column.