wow... this is a very AWESOME, detailed, and beautiful drawing!
its so dark, and so mysterious... i like how you cleverly use nice shading/lighting effects, and that the creature is tall, impressive, and scary, with nicely drawn scales, strange horns on its head, 3 eyes (two on its face, closed, and 1 large on the top of its head, open), many fingers, and with glowing runic signs on its body.
also, despite the creature's fearsome appearance, its pose/gesture, indicate the nature of a calm, reasonable intellectuall, a wise creature that is here to teach things, to enlighten people, and not to destroy them.
hence the matching title, ''antithesis''. (the opposite(s)).
wisdom and stoicism, in one creepy package.
i like how it holds its hand in a V shape/gesture, and it thus makes the ''enlightment'' movement, in order to teach everything to the viewer/ to the narrator.
also, the story is great as well: i loved all the details, and the nice/atmospheric narrative.
overall, you did a GREAT work, please do more stuff like this, keep it up... you rock!