Playing with Abstraction

Here's a digital illustration I did a while back for Orson Scott Card's Intergalactic Medicine Show.  As I drew it, I became very interested in vertical and horizontal lines and the shapes these created around the figures.  It became a sort of game in which I tried to create a realistic painting based on a more abstract composition.  Tonight I took it step further and quickly rendered the painting as a complete abstraction.  What do you think?