Creative Assembly competition - Trebuchet

So I read about creative assemblies graduate art competition to create a game ready asset based on historical character environment or siege weapon and decided I'd give it a shot. I've been creating a classic medieval trebuchet. Work in progress renders shown below.

You can find out more about the competition on the website here http://www.creative-assembly.com/news/140807/creative-assembly-graduate-art-contest

Thanks for reading,

-Andy