Tanzania, Africa-29,000 yrs old

Here are two cave paintings from Tanzania, Africa. Both are estimated to be up to 29,000 years old. The first painting is located in Itolo and depicts several disc shaped objects. The other painting is from a Kolo cave and shows four entities surrounding a women. Notice also the entity looking down from inside some sort of box or object. When looking at these cave paintings it is easy to draw the conclusion that these are of a UFO, an alien sighting. Look at the objects on the first cave painting, they sure look like a UFO, a flying saucer. Is this one of the first UFO sightings on earth? You be the judge.