A quick bit of test-animation i made here so i could get an idea of how the weathervane might look...

Rooftop and Weathervane

One of the props from The Inventor of Happiness

The External Towers were very much a collaborative creation; Kevin Harris, Mark Hopton, Wern Meen, Zoe Shaughnessy, Thomas Laurance, and Anna Lynch (that i know of - there may be others..) were all involved in the design/construction at one stage or another. I just got to add the chimney, leading and the weathervane flourishes really.

The Weathervane, though, i was particularly proud of; i just love the weight and balance of the shapes of the swan. I also had my own Rockett Swann in mind when I was sketching the wings.