Looks interesting so far. It seems like you could work out a black/silver/gunmetal main color scheme with blue and red accents. The attachment of the gunmetal plates on what I would presume is thigh armor makes him look a bit fat, you might want to move those closer to the upper body or turn them upside down.
(meant to post this about the first picture but couldn’t, still sorta my opinions though.)
I do think his arms could benefit from being based on normal CCBS limbs, the TECHNIC structure to them looks a bit awkward. I like how his torso armor is coming out, but could you remove the stickers from the Rotor pieces?
Yes, I will remove the stickers. I know the left arm looks awkward, but its supposed to be a replacement arm for one that was cut off, so I’m trying to make it look more stiff and mechanical, and CCBS won’t do the trick. It looks terrible now, though. It is definitely one of the things I want to redo.