Yes, that is in fact a Celestial Narwhal.
So now we know why Link doesn't like to speak. (^ω~)
We kind of made this comic by accident. Originally I was pitching a political joke with Trump as Ganondorf and Robert Mueller as Link, but it was definitely too forced. So after riffing for a bit, we somehow came up with the celestial narwhal joke. And Sarah was extremely pleased.