"COLLECTOR" - An Alien race travel the 3 universes collecting various species then put them together in an alternative mini world to study how they react to each other. Well the challenge asked for reflection/refraction and basic torture for whatever machine you work on. My poor iMAC chewed on this for over 28 hours on regular settings! The final piece I wanted to post used HDRI but I am sure the challenge would have been over by the time it rendered LOL. Good luck to everyone!!!!