Thundercloud Whale

A large whale-like body sporting coral reefs around the eyes, forehead, and tip of the tails, a predominantly white color with shades of grey undertones. A horn that resembled coral at first glance but also had similarities to a rhino's.

The horn had a helical groove to it, having a thin conical structure with a hole at the tip. That was the Cloud Whale. 

But now, there were obvious changes. 

First was the appearance of feathers on its fish-like skin, causing it to possess the traits of a bird. However, it still resembled a whale overall. The coral portions of its body had faint purple marks, similar to lightning strikes.

The feathers also varied, sporting a large white sea of feathers with grey undertones along the curvature. They were further elevated by purple feathers that emboldened the figure of a wisp on the forehead. 

The maximum size of the Cloud Whale back then had capped at 25 meters. But now, it increased to 30 meters in length.