Yeah the brown brick looking things are counterweight. I made them look different(although now on second thought they might be a bit to different) because i wanted to show that they are removable and adjustable so you can even enlarge or scale down the size and weight of them.
Keep at it n' don't let things bring ye down. Good job.
Th' title is non-military, so different colour is fine. Mil would need same colour scheme throughout most o' it. Y'can make li'l markings on th' counterweights tha' look like 1000 lbs or 2000 lbs/1 ton.
But how did ye make them secured t' th' mech? I can't see anything from this angle.
That's not entirely safe, but at least ye thought o' somethin'. Good job. =^.^= Add on at least two safety measures n' it's good. One could be havin' two holes in e'ery weight n' once they're all added on, screws holds them all in place. I'll let ye think o' th' other one.
From a technical standpoint, I think either A: Your green ambient light has too much influence on your mech; or B: Too little influence on the rest of the scene (ie mech's shadow, glaring brightness at the source)
From a robot lovers standpoint. I think the mech looks amazing. It looks more like it was designed for a harsher environment (space/deep sea)