The slightly fiery effects would not be out of place in a Blood Moon skin. No real reason to classify it differently.
Ask yourself this Riot: Would you make a Shadowfire skin for a character that has a Blood Moon skin?
Let's start saying why this is not a blood moon skin.
(Sorry if this looks rude, lel)
No, but they also probably wouldn't mix Mecha, PROJECT, and Battlecast skins on the same champ either. Besides, the Lamb in that image makes me think of Justicar or Arclight more than Blood Moon, and Wolf doesn't look like a Blood Moon entity at all.
Because that doesn't look blood moon at all? It looks freaking Darksiders not Asian theme.
The masks worn aren't Oni masks. Therefore not Blood Moon.
None of the Blood Moon skins have anything to do with fire, in fact the fire effects would look out of place on the champions with blood moon skins. 
I'm still wondering why Riot didnt give 
a Blood Moon skin...i mean she is kind of THE moon it would only be logicall for her to have one!!!!
This has more of an angel and demon feel to it. Blood moon is a specific ninja-ish line. Definitely doesn't look like that.
Would rather it be Blood Moon.
