Ok, here is Arachnid with tweaks. I changed the color on the Pads and Helm (Darker). Changed the mechanical arms. I also moved his arm in a bit and made it slightly larger as I agree on it not looking like it was attached.
The only change I’m keeping here are the silver spikes on the Shoulder pads as they are not part of Arachnid’s real anatomy. (The slightly green ones are coming through his outfit).