I mentioned Kara Walker in my earlier blog.  Her silhouettes are life sized, taking up entire wall spaces and made from cut up black paper.  Her reasoning for making them life sized was to strike awe and shock into the viewer's eyes.  In other words, they're more effective on this scale.  Here are some of her works depicting slavery.

I decided to take a similar approach and make my own silhouettes life sized as I thought they would appear more interesting this scale.