This is really cool!

What an exciting yoga class. Or a very seem contemporary dance piece.

The intensely serious expressions make this really a lot of fun, probably due to the contrast between the stone face of the front and back ones and their cartoonishly angular poses (and even the middle one-- if yelling, is still quite blank).

The selection of poses makes me think of that improv game "Standing kneeling sitting" or whatever, except standing/sitting/laying.