Thanks for the feedback. For reference here’s the original. The 8 point crown up top is clearly a chaos motif far as I can tell, but the art style is much more classical and results in a bit of a derpy style imo. Plus since I want it to be a decal for my minis I want to keep it somewhat simple so it actually comes out ok.
My idea was that it’s a dessicated Gorgon’s head - cut off as if by Perseus - and the crown obscures the top snakes while the rest dangle behind and are visible. The choice to make it more skullish is in part because I’m fluffing my Chaos Lord as a astrophath/librarian sort who is in charge of last rites for the dead battle brothers (Blood Gorgon Sorcerers are equal parts apothecary/librarian/mage so I figured that made sense). I like to think this particular emblem sets himself and his retinue apart from the rest of the Chapter.
As for the Gorgon being female - is there much difference when you get down to a monster skull?