Yeah, this one is definitely for the hardcore literary Lovecraft fans. Really tried to get all the details that other artists seem to miss. The main one being that he is big, fat, and weird. A gelatinous beast that hasn't moved for millenia.
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Cthulhu shouldn't have thumbs. Cthulhu shouldn't have sweet biceps. Cthulhu shouldn't have angry eyebrows.
He should be otherworldly and like in the description "vaguely anthropoid" at best. Not a bodybuilder wearing an octopus mask and bat wings.