Hey there !
This is my latest render.
I’ve tried to do something realistic in a kind of “life after human”.
All done with Blender except for the light rays.
Hope you like it
(Sorry if I couldn’t do everything you advised me, I’ve tried to change the texture of the building, but I don’t think we can see well the dirt, and for the stairs, I couldn’t find a suitable way to make the stairs dirty)