Generate a highly detailed 3D C4D render of a mythical sea creature that combines the attributes of a fish and a dragon, with cyan and red scales. The creature should be of an immense size, swimming in the ocean with a stormy sky above, featuring lightning to accentuate the scene's enigmatic and vibrant atmosphere. The setting should be a mysterious academia environment, and the image must be in 8K resolution with a 1:1 aspect ratio to capture every intricate detail of the fish-dragon and its aquatic realm.