Source: After the Rain - Kitbash3d Challenge (by Andy Walsh - ArtStation)
A few decades in the future after a great flood and ensuing war. Dense and noxious vapors gather at the ground level of the city so that inhabitants take refuge in the higher levels of the taller buildings. The buildings are connected by long wires which they use to send items or messages to neighbors. Only some of the kids are foolhardy enough to venture outside, against their parents' wishes. But even they know to wear masks. Occasionally a news drone or research team float through to gather data amidst the swirling gas.
My entry for the kitbash3d post-apocalypse challenge. #kb3dcontest
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