This is a cool MOC, though, albeit a bit messy. I generally dislike black/iron/silver MOCs because they’re so muted - if you added in more white, or some of the colors on that Beast chest plate, it would pop out a bit more. As is the head and the cape carry most of the color on this MOC. (I see there’s also some dark blue shells, but those get lost within the black since they’re under the cloak.)
The gun is pretty solid - though I don’t get the rectangular bit on the end - and the head gets the design across, but blockily. You actually might get some mileage out of a Chima or Bulk 3.0 head.
I’m not a massive fan of ccbs primary builds but this buckles the trend. I love the custom head and greebled areas. The mixture of smooth black and then grey areas with cogs really makes this look bio-mechanical. Also dubstep guns are always cool.