The problem at the base is just a wrong reflection... I've rendered an animation to see where problems are...
Basically the whole thing is based on simple raytracing with some procedurale enviroment maps that tdrive reflectivity, all colors and so on...
I've rendered it in both Maya and MR for Maya Beta. Reflections in MR are much cleaner... but Maya doesn't make thís bad base Perhpas something for compositing -)
Haven't used GI. Takes too much time to render and I have much more control making it manually...
-Klaus
Klaus Stangl
inferno*&Maya
www.worldofmaya.com