I thought I'd post a few images and a link. The images are just CG design concepts I did in Scupltris. I'll do the finals in Zbrush. The Sculptris models are just too heavy to animate and weight properly but I love designing in it. I stopped doing clay maquettes and go straight to Sculptris. It's easy then to export and paint the models and even do some expressions and poses.
Here's a link to the web site. There's a lot more images as well as grabs from something called Things That Go Bump which will hopefully be the follow up film.
Well I can't seem to upload more images. Just check the web link above to see the rest. Click on the Pirates vs Ninjas Art button to see the rest. There's a lot of other content on the web site and if you want to support Pirates vs Ninjas or possibly Things That Go Bump check out the Kickstarter links. The web pages explain everything.