I gave it my best shot. I'm sure another iteration or two would make it better. Dataset of 71, superhero comics, and mostly Superman at that.

I tried to teach it the difference between arm and hand poses.

Arm poses: Arm_up, arm_down (can be combined) arm_back (like flexing with the other arm up) arms_up, arms_down, arms_behind, arms_out

hand poses: clenched_hand, clenched_hands, flat_hands, open_hands

Oh and legs_together of course!

I hope you like it :)