Seems a bit uninteresting- a more obvious choice of a subject would help this. Getting up close and personal with one of the pumpkin folks, for instance, and being closer to the ground. Horizon is off kilter a bit as well.
It was a cataclysmic event like no other. Humanity had always had a fascination with the end of times. The end of days. Events that would destroy us all. We read them in books. Packed theaters to watch them on screen. Invented our own such tales in a guilty sort of pleasure.
When it actually happened, however, I don't believe anybody saw it happening in this way. The day that the searing light encompassed the world, and when it finally passed, humanity was over, transformed into lifeless pumpkin people. Stuck forever where they had last stood, doing whatever they were last doing.
I recommend not placing your subjects right in the center of the frame, the composition here would be much better for me if the were more up or more down from the center line.