Different colors express different moods, for example we often associate red with anger, blue with sadness. So the color can affect the mood set for you artwork. Also, in like abstract drawings it can help you because we often associate colors with certain landscapes.
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.
