I actually really like the coloring of the droid in that model. That would be A LOT of work to recolor them all that way, but I think it would have a lot of impact. Menacing red eyes would top that off nicely as well.

Something else to consider is the fact that TPM misuses nature when setting tones. Why does the droid battle/break into the capitol all happen on a beautiful sunny day? Where are the ominous clouds? The distant roar of thunder?

I understand that it's not needed... but in the OT, every environment (with the exception of Endor) really helped set the tone. Endor could've used a lot more shadows and a clostrophobic, wandering aimlessly in the woods type feel.