Thanks for your positive comments (and for raising the score a little from a dismal 6.1, hahah!).
The figure was scratch built with green stuff and pasticard, over a wire armature. The body and head were each made from two pieces of plasticard whereas the arms, legs, feet and details were sculpted. The eyes were made from plastic tubing with green stuff for the 'lenses'.
I'm planning to make a series of these robots, in particular because my girlfriend now wants her own!