Sub-Surface Scattering Challenge

[AndFarr]

Maybe it's just wishful thinking, but it seems like we should be able to create a imitation 3d sub-surface scattering effect in a 2d drawing.
I've tried to break down the image in my mind to the individual elements and reconstruct them in Xara Xtreme.
This is my first attempt, and clearly I haven't gotten it right, but I'm sure if we put our heads together we could come up with something interesting!
Anyone???

- Andy