Shattered Chica got dirt stains all over her body, which makes sense because she fell in garbage after getting shattered and she keeps eating it aswell.

Shattered Roxy has burn marks all over her body. Idk if these are on her body as soon as she's Shattered or if they are added after she reaches the burning room during her bossfight. The latter would obviosly make sense though the former would be a bit odd.

Lastly Shattered Monty has multiple scratches across him. Some seem to be caused by him now his arms in a way that causes him to scratch his torso with his upper arms, while others seem to be caused by him getting impaled...? I'm not sure when he got impaled but the holes on his back clearly are bend towards the outside, meaning whatever made those holes made them from inside of him.

Alright that's all I got. I just wanted to point out how much thought Steelwool put into their designs :)