Maybe they're from out of town and have come to visit us and observe us from near earth orbit. Or maybe we've finally reached our destination, an Earthlike planet, and are observing it from orbit rather than landing on it recklessly. In any case, a spherical spacecraft is always a good design. That sphere, though, does not have any stealth or cloaking adaptations and if it's there, we, or they, will see it right away. Let's hope it's a peaceful situation.
"The Observers" is acrylic on illustration board, 10" x 7", November 1991.