I love Keith Haring's work, especially when it comes to teaching pose and gesture people. I had my 4th graders VTS (Visual Thinking Stratgey) some of his work and then we created some of our own poses. They had a blast being the models so we could draw their poses.
We then cut our people out of construction paper and glued them to a longer piece of paper, then outlined them and created a ground. Super simple, but they turned out great.