Ancient astronauts (Italy)

Most of you probably had already seen this picture, which supposedly depicts 'ancient astronauts':



It's a rock drawing in Val Camonica, North Italy.

I thought the picture was weird and certainly didn't represent humans. However I stumbled upon three other pictures, which also come from the same place in Italy:

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Now don't they look like people fighting with swords (or sticks, if you will), and some sort of shields/mantelets? What do you think? I was quite surprised when I found these photographs.