It reminded me a bit of the city Divinity's Reach from Guild Wars 2, which was my original inspiration for my castle. I think I underestimated the scale a bit :(
Now all I need is about 300 houses inside the city, to finish the inner city, to do about100 rooms in the cellars and to build the fucking immense subterranean parkland area :Y
Oo yes, Peter has reminded me: white wool for the clouds, too!
It's a shame you can't make it rain indoors. Or can you? Does rain fall from the clouds, or just from some point above the max height at which you can build things?