Cave of Solitude

I wanted to challenge myself to do more studies on value and tone.  It's not enough for me to simply know how to move a character.  I have to understand the environment and how a character moves within it.  It also helps me to plan better shots.  Before starting on a mega-huge-epic matte painting, you have to understand the fundamentals.  This started with a simple sketch I did that looked like an underground cave.   Why not expand on it?  Don't let it sit there in the sketchbook. 

Cave of Solitude

Here is the sketch I started with.

Original Sketch