Are these actual Aborigine Paintings?

One source says : These a images from Kimberley, Australia. They are Australian Aborigine cave paintings, possibly 5,000 years old. It is believed they represent ET beings.

Or are these paintings from the Aborigines Hundreds of years ago? Of course they are..  You can see a strong reference to UFO's through these paintings.  Were the Aborigines influenced by UFO's and Aliens in ancient times?  A lot of information points in that direction.  

Not only from ancient artwork, but from artifacts, fossils, credible reports, etc. Slowly we piece together the past from clues left behind. One day perhaps we will be able to answer the question: Were Aliens and UFO's a major part of our history?