Compositing With Silhouettes

This is a composition made with a silhouette that I made following a tutorial. The hardest technique was probably figuring out that to make the channel work properly I had to select the inverse of the luminosity selection. The easiest technique was making the padded room look menacing by adding the textures and hues.

Here's the tutorial if anyone wants it:

http://www.graphics.com/article-old/compositing-silhouettes-photoshop