I started this thread thinking purely of a straightforward Challenge, but as the hours ticked by I was struck by how exciting it would be to do it as a community thing - and also how impossible it was going to be to draw anything but a rushed city in the space of a month.

It never even occurred to me to ask for an extended Challenge until Josiah spoke up.

Maybe there is room for both - an extended individual Challenge, and a community project? (Though not necessarily both at exactly the same time, of course).