try using some gradients on the big blocky part. go search for my UNSC Saw and you should see how i used said gradients

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Getting there, the blocky bit at the back is a little off though. Adding some Rouxian lights, a red dot sensor and/or a smaller iron sight woul help as well as some colour variation just don’t stray from the colour scheme too much or it’ll look weird (so no greens, blues, browns, ect…)

It’s a little… Thick?