This is the final image.
But to give you an idea of how I got there, here's the process:
I started out with some basic thumbnails, dran in SketchBook Pro.
And I proceeded to finalize the sketch.
I took my sketch into Photoshop and started laying in flat colors.
I proceeded to add in some darks and lights.
Then I rendered the piece some more and changed the position of Arianna and Larry.
And finally, the finished piece.
I cropped it in a bit to make a better composition.