No, but I remember that one. Mostly I was extrapolating from The War of the Worlds, but adding in the existence of gravity control technology. This serves as an explanation for how the invaders were able to survive the acceleration and deceleration forces on their cylinders.
I love the ominous atmosphere of this picture. I was going to rant about the relative emptiness of the lower right half of it, but I realised it gives the strong sense of desolation that is, I think, central to this piece.
But damn, I have a very similar sketch of an aerial Borodino-class firing a broadside over my town. I should get it done some day.
The relative emptiness was me mucking up my levels again- I've got these pieces I started in a different color space than the one I finished them in, and the shadow details disappear unless I fix things. I uploaded a new version that shows some of what's going on in the corner.