I’m writing a D&D campaign setting on a planet that is a giant dead dragon’s corpse – the dragon ate itself suicidally in much the manner of your drawing. Wrote a short story about the dragon over a decade ago, and it’s been simmering for a while… Second last paragraph of that story:

But Azhi is tremendously long, and had grown considerably through all it had ingested. As it samples its tail, it pulls itself into a large loop in the blackness of space. And so it is, that as Azhi pierces its own hide and feels pain for the first time, out of the wounds flow not blood but all that Azhi had consumed. And still it continues to eat, pulling itself into a tighter and tighter loop, while oceans and glaciers and mountains and forests flow forth from its wounds, and soon too, the seven young dragons are freed from their prisons within and all life springs forth anew. But still Azhi continues to eat, until the very spine of its body was bound so tightly into a ring that it cannot contract itself any further.

I wasn’t high. Just manic. ;)