Well done bantha.
Now if you want to show the IDL interaction between objects?
Put a large true yellow box on her left, a large true green or red box on her right side, and a smaller true green box front or back.

IDL works best when there is interaction between different objects.

In-Direct-Light action that is.

ha-ha- or put lots of different but true colored boxes around her and let the Light and IDL do their thing...

PS, I think your shadows area bit on the HARD side, and it shows.
I would soften my shadows a bit in such a render.
A shadow is never an ON-OFF thing, it smooths out.
u use raytraced shadows? Yes?

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"Do not drive faster then your angel can fly"!