These are (mostly) all fanmade! Bone & Scourge, Yellowfang & BrokenStar, Blackstar & Barley! (YellowFang, BrokenStar and BlackStar do have canon designs, but only show up in the intro. Blackstar's full body design was never revealed. as for Scourge, design concepts for him were posted on the group's social media, of course none of these were 'confirmed/finalized'. his pose was directly referenced from that.