Cool mech! Have you tried adjusting the canopy by 180 degrees to see what it would look like? I think it might blend more smoothly with the side panels you chose. I could be wrong though. Just an idea.
That's tight, man. Not too big on the color scheme as that makes it look like a construction vehicle, but your solid building style makes up for that. I'm really liking the arms and claws, you did a nice job on those!