This is great! He seems to be dancing to the rhythym of the destruction, or something like that... it demented, but still very poetic.
There is only one thing that I truly don't like about this painting. The city is burning is burning and the blacl angel ominously glides above and yet the people still appear like they casually walk around, it seems completely out of place. No one is running for their lives, no one has fallen to ground. They all appear calm like nothing is happening. Unless there is a reason for that, I really don't think it is befitting of the situation.
This is just a detail. The rest of it absolutely intense and I love it, good work!