Tsukuyomi ( or Tsukuyomi-no-Mikoto pick your poison) is a moon god in Shinto and in Japanese myhtology (personally I don't know the difference between Shinto and Japanese mythology). The name/word Tsukuyomi is apparently a compund word. "Tsuku" of the word/name roughly translates to "moon" and judging by the pictures and thumbnail for this amazing work, the Blue Ash on the left symbolifies the Moon god or Tsuku. But wait there's more! The other part of the compound name/word surprisingly has 2 meanings and 2 pronounciations I guess you would call it: Yomi or "Yomi-no-kuni" (Again, pick your poison). And to my surprise the single word "Yomi" can either mean "Reading" or "Hades" and the words "Yomi-no-kuni" means "Realm of the Dead". Now back to the pictures. I'm going to assume that the Red Ash on the right symbolifies Yomi or the Underworld/Hades. I don't know if any of this is the right answer to the enigma but it's always fun to learn something new I guess :D Anyways, good work on all your stuff and hopefully DE will accept some of em.