Space Marine Banner Request: Mortifactors

Engima85 asked for a Mortifactors banner and I tried my best aha, there was little offical icongraphy to draw off and they're not a fan favourite second founder like the Black Templars or Crimson Fists so it took me a bit to fill the space, still I feel as though it's a little lacking compared to the rest but hope it's okay.

Also side note, I've noticed it on this one so it might be on the others but the model fricked up a bit on one of the Astartes' symbol wings, sorry for this, I'm very new and not quite sure how to correct it.