Cartoony robot, eh?
I'm pretty sure i've seen you do some textures with good 'smooth' shading, IMO that kind of shading would fit this better, you catch my meaning?
But don't get me wrong though, i see what you are aiming for there, and it will probably come out pretty good with this sort of shading aswell, and you stated: 'New robotic style' for you, well, i'm quite jealous actually.. I've personally been stuck with one style of texturing for about what, 1-2 years? It's great to see artists around tb trying out new things.
And as Goodbox already said, the visor looks sorta weird, the lighting on it needs some work but i'm quite sure you've thought of that yourself already.
Keep on working.