Skulls and skeletons are used so frequently in all kinds of graphic design lately that you're about as likely to see them on a preteen girl's backpack today as you were to see them on a heavy metal concert tee in 1983. But in this case, the Death figure makes sense thanks to the crowd background, an obvious nod to the tragedy for which BJM is named. So even though I've just about reached the saturation point with osteo-art, I can dig this poster (You didn't think you would get through an entire BJM-related piece without a reference to that movie, did you?).
So far I haven't been able to track down the designer, but will update as soon as I find out who did it.