Concept art of SCP-966 for Anenpa Team's upcoming game, SCP: Project Upsilon. I was given permission by the lead dev to share these concepts
I decided to make this design a much more direct take of the object's description. Since SCP-966 is described as resembling "hairless digitigrade humans" I made sure that its general anatomy is consistent with that of a hominin. The feet are essentially stretched out and digitigrade versions of those of a human, with hooked talons in place of toenails. Rather than taking the more stereotypical route by giving it a skull-like face like in the article's original image (which technically isn't canon anymore because it has since been removed), I decided to be more bold and give it noticeably more humanoid, albeit grotesquely distorted, facial features. Its jaws are elongated to accommodate its numerous needle-like teeth, and its brow ridges and sagittal crest are very prominent, much like a chimpanzee's. Its molars are small and underdeveloped, so it compensates for its inability to chew with a wide jaw gape and an expanded esophagus, ripping large chunks of flesh and swallowing them whole.
SCP-966 "Sleep Killers" was written by Enma Ai.