A lot of challenges presented here.  Admittedly I had no idea how to draw a giant city -sized explosion so that was a new experience and the colors involved with earth and grass etc fall primarily in the range of colors that I cannot see so I hope that came out okay.  Plus trying to visualize a city the size of Codanshi, significantly larger than modern real world cities, was interesting too.

 

Anyway, here is tens of millions of people dying all at once then many of the immediate survivors also dying from the fallout (the wall being sucked in by the vacuum created from the explosion).  How did it happen? That’s for another day’s comic.