Holy foot it looks great! See, I knew it! Adding colours is like fairydust man, this mech now looks good as. ^^ The shadows look really cool with what you've done so far.
Um lol ... I actually wrote a whole bunch of comments regarding possible additions to shadow placement ... then it hit me that the light source you chose is probably deliberately coming from the front and side, and NOT significantly coming down as well, like I thought. So those observations are all redundant. XD Tell me though, which the right light source?
Otherwise I'd just like to say, well freaking done. Now do more! JK, take your time, don't stress and make more doubly-awesome coloured ones. And oh, this colour scheme rocks more than the other one, because I'm such a Pokefan and this reminds me of Regigigas.
I imagined the light source to be somewhere northwest. More north than west actually. But obviously my imagination whith lighting still leaves much to be desired.
As for the shiny, I created a new layer(alongside the shadow) and added white highlights to peak areas such as the yellow area on the shoulder and on the chest. But they dont see to be picking up well on the yellow. ><
Still, thanks for the review! The originally Zero-R was a supposed to be an aggressive killer. After Josh relooked the storyboard we channged him to be more of a gentle giant nature and the red scheme didnt seem very matching. So I choose the yellow one as the final design to reflect his personality.