Glad you guys like it. I definitely had to fight with getting a look that's appealing, yet easy to produce, which was a real challenge. The silhouetted style has been used quite a few times now, but I think the style has its own uniqueness now that doesn't seem (too) cheap or copied.
Going with silhouettes was really more of a compromise going in, cause I knew I'd never finish the game if I'd go with anything more detailed.
Steven: The characters are relatively simple 3d characters, modeled, rigged, animated in Maya and rendered out with a simple lambert shader set to black - so that all that matters are the silhouettes. Then I take them into Photoshop, scale em down, add the bloom effect and save em as png's. The color correction and sharpen in Construct does the rest to achieve that look.
The characters in those screenies are still placeholders, the style of the actual characters is a bit different to better match the environments and the story.