The 'E' in the LM icon isn't a mistake -- the lander was initially to have been named the Lunar Excursion Module (LEM) but this was later dropped and the acronym shortened to LM. The ascent stage is also a bit too dark in this icon, and too tall, which gives it a bit of a toony look when compared to the highly accurate capsule icons.

The CM reentry icon is especially nice -- very good alpha masking on that one.

As a space buff, I'd like to see more icons to go with these. Maybe even a system replacement set!

More Earth photographs are available from the NASA Human Spaceflight Web site at http://spaceflight.nasa.gov.