The first one might be from ancient Egypt, but I'm not 100%. I don't know about the culture for the last two but comparing them, I see the first one has lots of animals and people on it, which the other two don't have. one thing different about the second one is that it is only a singular thing and I can see that it is a lot more emotional than the other ones. one thing different about the last one is that it has a lot more symmetrical designs and is more abstract without animals/humans. now some things similar to the first and last are that there are a lot of small things that collectively add to the piece. and some similarities to the first and second are that it (looks like) they have something living in them.
I think the answer is 20 but I am not sure,I heard about 15 and 25
