What the actual fuck is that?" "A demon, a high ranking one." "Oh, they have a hierarchy? Interesting."  "Yes, actually, it's very complica-" "No, Seth, honey, I don't actually care as long as we can kill it." "We can."  "Wonderful. Now that I meant."

Samael, maybe Rise by =ChrisCold on deviantART (cropped for detail)

Dark Young of Shub-Niggurath [by daviblight, via Newgrounds]

Dark Young of Shub-Niggurath For scale reference they have been known to range from the size of horses to the point where one of their cloven legs is as big as a tree trunk. [by daviblight, via Newgrounds]