first one- fairly oddparents style. i don't even like this show, but i couldn't get the idea out of my head.
second one- jamie hewlett style (but not colored the same way, obviously)
third one- no specific style, just drew it.
So this guy, this Zulu Astronaut, is sent to other planets to spread the culture of his people. The people of Earth are just way too stubborn in their ways and don't easily accept new ways of thinking, so the hope of his tribe was that the inhabitants of other planets would be more open minded in learning the ways of the Zulu people.