Lol you think they judge models on quality. Lack of really.
I think they judge them on whose is the lowest polies and has the least particles.
Barely anyones PCs nowadays even mine has a problem rendering lots of particles or polies.
Just make sure no-one ends up past the "maximum" limit the engine pushes forward.
For example Pyritie made Misha cut his particles to 30 from 60. That was unnecessary as Blizzard frequently uses 50+ particles for models, AND this model is a hero!
They make people reduce polies and billboard things that don't need to be billboarded. =/
As I said earlier, it doesn't look like Chrome wants to do a skin, however if he did I would "beg" that he chooses something out of the ordinary and not the same blue/green/orange/yellow colour schemes. Somthing like Yellow and Orange would be interesting!
As all you need is a simple shading, I think that the Geoset Animation is enough. Just check "Use Colour" and choose a lightish grey and see what it looks like. Vary the grey until they looks darkerish (<-- Is that even a word

). I am assuming that the chans and shoulderpads are a seperate Geoset and that should work fine.