If you whant you can make test previews of the textures on the model, make what you whant but I can give some of my ideas if you whant can use:
REALISTIC:
reflecting metal shade for the orange and yellow, rubber like for the greenish black, crystal like for the eyes.
GBA based:
self explanatory.
Cartoon like:
cell shade/ base simple colours.
ORGANIC MACHINE:
organic gibers for the greenish black articulations, non reflective plastic for the yellow and orange, gumm/candy like material for the eyes.
just some ideas, you do what you want... send me images with previews of what you have made so far, looking foward to this colaborative model... B)
REALISTIC:
reflecting metal shade for the orange and yellow, rubber like for the greenish black, crystal like for the eyes.
GBA based:
self explanatory.
Cartoon like:
cell shade/ base simple colours.
ORGANIC MACHINE:
organic gibers for the greenish black articulations, non reflective plastic for the yellow and orange, gumm/candy like material for the eyes.
just some ideas, you do what you want... send me images with previews of what you have made so far, looking foward to this colaborative model... B)