Luffink said: Isn´t that water monster from "Avatar: The Legend of Aang?
Nah, that's the forest spirit from Princess Mononoke. However, I do amit the two share similarities. And I can probably bet the writers were inspired by that movie when Aang merges with the ocean spirit.
Do we have whatever that brown thing/guy with the propeller on his head tagged? Went through all the character tags that are on this image so far and none lead to anything like him~